Question

Expand and Simplify (x+7)(x+5)

Answer 1

x^2+5x+7x+35
and then final simplified answer is going to be x^2+12x+35

Answer 2

`=x^2+12x+35`

Explanation:

`\left(x+7\right)\left(x+5\right)`

`\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd`

`a=x,\:b=7,\:c=x,\:d=5\\=xx+x\cdot \:5+7x+7\cdot \:5\\=xx+5x+7x+7\cdot \:5\\=x^2+12x+35`