Question

factor 2x^2 − 8x − 42.

@amistre64

Answer 1

algebra .... simplify it

Answer 2

How... ?

Answer 3

Start by factoring that 2 out.

Answer 4

s divide by 2

Answer 5

x^2-4x-21

Answer 6

x^2+3x-7x-21
=x(x+3)-7(x+3)
=(x-7)(x+3)
therefore x=7,-3

Answer 7

be careful with the sign .... .....+3-7=-4

did u understand ??

Answer 8

2x^2 − 8x − 42
Factor out 2:
2(x^2 - 4x - 21)
What two numbers multiply to -21 and add to -4? -7 and 3, so
2(x - 7)(x + 3)
The problem only asks for factoring, so keep the 2 as a factor.