Question

Solve the equation below by factoring:

Answer 1

Ask: Which two numbers add up to 7
7 and multiply to 12?
3 and 4

Rewrite the expression using the above.
(x+3)(x+4) = 0
x+3=0 or x+4=0
So x = -3 or x= -4

Answer 2

`\huge\fcolorbox{blue}{aqua}{Answer:}`

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Answer: =A.
`x = - 3`
`x = - 4`

Solution:

`x ^ { 2 } +7x=-12`

`x^(2)+7x+12=0`

`a+b=7 ab=12`

`1,12 2,6 3,4`

`1+12=13 2+6=8 3+4=7`

`a=3 b=4`

`\left(x+3\right)\left(x+4\right)`

`x = -3` ,
`x = -4`

so the answer is = A.

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Step-by-step explanation:

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