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
blagie [28]
4 years ago
9

Simplify the expression (4x − 3)(x + 5). 4x2 − 17x + 15 4x2 − 17x − 15 4x2 + 17x + 15 4x2 + 17x − 15

Mathematics
2 answers:
IgorC [24]4 years ago
8 0
A) (4x-3)(x+5)=

*(a+b)(c+d)=ac+ad+bc+bd

Soo..

4x*x+4x*5-3*x-3*5=

=4 x^{2} +20x-3x-15

=4x^{2} +17x-15

b) 4x^{2} -17x+15=

=(4x-5)(x-3)

c) 4 x^{2} -17x-15=

=(4x+3)(x-5)

d) 4 x^{2} +17x+15=
=(4x+5)(x+3)


e)4 x^{2} +17x-15=
=(4x-3)(x+5)




DanielleElmas [232]4 years ago
5 0
There are mnemonic acronyms out there for reminding you how to do this. I think of it simply as using the distributive property.
  (4x-3)(x+5) = 4x(x+5) -3(x+5)
then again
  = (4x² +20x) + (-3x -15)
  = 4x² + (20-3)x -15 . . . . . . . combine like terms
  = 4x² +17x -15
You might be interested in
George finished 10 of 25 math problems.what percent of the problems did george finish
PIT_PIT [208]

Answer:

40%

Step-by-step explanation:

So 10/25=0.4

0.4=40%

8 0
3 years ago
Read 2 more answers
A group of 48 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each
Ber [7]
2256 fist bumps. 47 fist bumps x 48 friends is 2256 fist bumps.
8 0
3 years ago
Read 2 more answers
PLS HELP ASAP ILL GIVE BRAINLKEST PLS THANKS ASAP PLS
kherson [118]
Answer
2nd one
(2,-2) ordered pair -4 y-intercept
7 0
3 years ago
Read 2 more answers
8.961 rounded to the following tenths place
tigry1 [53]
Because everything below 5 rounds down and everything about 5 rounds up 8.961 would round to 9.
8 0
3 years ago
Read 2 more answers
A baker bakes 752 muffins in a weekend. she sells the muffins in packs of 12. how many packs of muffins did she sell, how many d
eduard
752/12 = 62.66 and since she can't sell a portion of a 12 pack, she sold 62 whole packages and had 2/3 of one remaining, 2/3 of 12 is 8 remaining.
8 0
4 years ago
Other questions:
  • A park district has 25 elm trees and 20 oak trees to be planted. They are separating the trees for different areas. They want ea
    9·2 answers
  • The binomial 8x+6 is equivalent to​
    14·2 answers
  • The rate of change of the mass, A, of salt at time t is proportional to the square of the mass of salt present at time t. Initia
    8·1 answer
  • Can someone help me please. Im not sure if that answer is correct I accidentally clicked it
    12·2 answers
  • a bicycle shop advertised all mountain bikes priced at a 1/3 discount.the original price of the bicycle is 327 dollars what is t
    9·1 answer
  • PLEASE HELP ME!
    6·1 answer
  • The average score on mid term examination of 25 students was 78.8 out 100
    8·1 answer
  • Delta math help? I'm stuck please this is very urgent!!!
    9·2 answers
  • What is the value of x?<br> 70°<br> 35°<br> 30
    11·2 answers
  • Please help!<br> maths functions
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!