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Reika [66]
4 years ago
11

How to factor quadratic expressions in General

Mathematics
1 answer:
serg [7]4 years ago
5 0
3x^2 - 4x  - 7 = (3x - 7)(x +1)

hope it helps
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Why is 4,536 less than 4,563
kkurt [141]
Well, one number is larger than the other, it has a bigger quantity, which makes the other smaller.
8 0
3 years ago
Read 2 more answers
Use distributive property to factor method 1. Use distributive property to expand method 2.
sasho [114]

Step-by-step explanation:

I guess method 1 means to deal with whole factors.

x + 5 = (x - 2)(x + 5)

for (x + 5) <> 0 we can divide both sides by this factor :

1 = x - 2

x = 3

for the second solution we deal with

x + 5 = 0

x = -5

so, for x = -5 and x = 3 both functions deliver the same output, and these are the intersection points.

method 2 : we multiply the expression out and solve it then

x + 5 = (x - 2)(x + 5)

x + 5 = x² + 5x - 2x - 10 = x² + 3x - 10

0 = x² + 2x - 15

the general solution to such a square equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -15

x = (-2 ± sqrt(2² - 4×1×-15))/(2×1) =

= (-2 ± sqrt(4 + 60))/2 = (-2 ± sqrt(64))/2 = (-2 ± 8)/2 =

= -1 ± 4

x1 = -1 + 4 = 3

x2 = -1 - 4 = -5

and you get the 2 solutions again. as expected, they are the same as with method 1, of course.

4 0
2 years ago
What is the relationship between the two equations: 3x + 4y = 12 &amp; 6x + 8y = 48
Igoryamba

Answer:

Their slope is the same. Perpendicular

Step-by-step explanation:

3x + 4y = 12

4y=12-3x

y=-3/4x+3

6x + 8y = 48

8y=48-6x

y=-3/4+6

     

6 0
3 years ago
Read 2 more answers
Different types of parallelograms have distinguishing traits. Compare and contrast the rectangle, rhombus, and square based upon
Stels [109]
All 3 of the listed parallelograms have both pairs of sides parallel, by definition.

The square and the rhombus have all congruent sides.

Since the square and rhombus have all 4 congruent sides, this means their opposite sides are congruent.  Additionally, rectangles have opposite sides congruent.
5 0
4 years ago
WILL MRAK BRAINLIESTTTT IF GOTTEN RIGHT DONT ANSWER IF U DONT KNOW!
il63 [147K]

Answer:

BC=4

Step-by-step explanation:

didn't i do this already lol

5 0
3 years ago
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