Question

7x^2+49x+84 plz explain it
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Answer 1

Step-by-step explanation:

if we divide this equation by 7

so the equation will be

x^2+7x+12

x^2+(4+3)x+12

x^2+4x+3x+12

x(x+4)+3(x+4)

(x+3)(x+4)

put these terms equal to 0

so answer is -3,-4

Answer 2

Answer:

7(x^2+7x+12)

7(x^2+4x+3x+12)

7[x(x+4)+3(x+4)]

7(x+4)(x+3)