Question

(x+6)(x^2-7x+12)
Algebra addition problem to find the area.

Answer 1

Explanation:

( x + 6 ) ( x^2 - 7x + 12 )

x ( x^2 - 7x + 12) + 6 ( x^2 - 7x + 12 )

x^3 - 7x^2 + 12x + 6x^2 - 42x + 72

x^3 + 6x^2 + 12x - 42x - 7x^2 + 72

19x - 49x + 72

30x + 72

x = 72/30

x = 2.4

Answer 2

`=x^3-x^2-30x+72`

Explanation:

Distribute parentheses:

`=xx^2+x\left(-7x\right)+x\cdot \:12+6x^2+6\left(-7x\right)+6\cdot \:12`

Apply minus - plus rule:

`=x^2x-7xx+12x+6x^2-6\cdot \:7x+6\cdot \:12`

Simplified:

`=x^3-x^2-30x+72`

Its complicated but..