1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natta225 [31]
4 years ago
11

Solve 5x²+9x-12=0 by factoring

Mathematics
1 answer:
asambeis [7]4 years ago
5 0

Answer:

  x = -3, 4/5

Step-by-step explanation:

To factor the equation, you need to find factors of (5)(-12) that have a sum of (+9).

  (5)(-12) = -60 = 60(-1) = 30(-2) = 15(-4) = 12(-5) = 10(-6)

The factors 15 and -4 have a sum of 9, so we can factor the equation as ...

  5x² +15x -4x -12 = 0

  5x(x +3) -4(x +3) = 0  . . . .  factor pairs of terms

  (5x -4)(x +3) = 0

The solutions are the values of x that make these factors zero:

  5x -4 = 0   ⇒   x = 4/5

  x +3 = 0   ⇒   x = -3

The solutions are x = -3 or 4/5.

You might be interested in
Somebody please help me!!!
Ivenika [448]
The person above me is correct
6 0
3 years ago
tell me which 4 letters are correct! A? B? C? D? E? F? if you get them right i will give you brainliest!!
butalik [34]

Answer:

B, E, D, and C

Step-by-step explanation:

5 0
2 years ago
Which integer is closest to 0 on the number line?
IrinaVladis [17]

An integer is close to zero if it is "small".

By small, we mean that it is small in absolute value. In fact, for any given distance d, there are two integers that are d units away from zero: d and -d.

So, for example, -6 is close to zero than 8, because -6 is six units away from zero, while 8 is eight units away from zero.

So, the answer is B, -8, because it is 8 units away from zero. The other options A, C and D are, respectively, 12, 10 and 14 units away from zero.

8 0
3 years ago
Do any of you get this question? Please help!
Alexxandr [17]
Honestly i just wanted to try this question since ive never seen it but i dont rlly know if i did it right at all

I equaled GH, HI, and GI together to get y

which i got y=-2

and what i got next i feel is off since

GH, HI, and GI all equaled -11

if you kind of know how to do the question maube you could correct me from there but otherwise dont take my word for it completely

4 0
3 years ago
6th Grade End-of-Module Review Part-xwhole Name Adam Robertson Date 1/12/21 1. Jazzlyn is applying for a job online. She has com
elena55 [62]

Answer:

48 questions.

Step-by-step explanation:

x is for the unknown variable, the number you are trying to figure out.

12= 25%x

if you convert to a fraction, 12 is 1/4 of x. if you then multiply your answer by 4, 12 is 25% of 48.

to figure this out you can also ask, 12 is 25% of what number?

8 0
3 years ago
Other questions:
  • What is the measure of angle abc if arc ac is 130 and arc de is 40
    8·1 answer
  • What is the scale factor in the dilation?
    12·1 answer
  • Anyone know how to do 3 or 4???
    7·1 answer
  • Find two vectors v1 and v2 whose sum is 〈−3,4〉〈−3,4〉, where v1 is parallel to 〈3,−3〉〈3,−3〉 while v2 is perpendicular to 〈3,−3〉〈3
    10·1 answer
  • Riley had $140.00. She gave Austin half of the money. She kept the rest. How much money does she have now?
    13·2 answers
  • A bug was sitting on the tip of the propeller blade when the propeller started to rotate. The bug held on for 5 rotations before
    8·1 answer
  • A football team receives a 5-yard penalty on one play and a 10-yard penalty on the next. Write a number sentence to represent th
    11·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!
    6·2 answers
  • How did they get m=29?????
    8·1 answer
  • Which expression is equivalent to 5(x+3)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!