Answer Key 7.2

$8r^2(5r-1)-5(5r-1)$
$(5r-1)(8r^2-5)$
$5x^2(7x-2)-8(7x-2)$
$(7x-2)(5x^2-8)$
$n^2(3n-2)-3(3n-2)$
$(3n-2)(n^2-3)$
$2v^2(7r+5)-1(7r+5)$
$(7v+5)(2v^2-1)$
$3b^2(5b+7)-7(5b+7)$
$(5b+7)(3b^2-7)$
$6x^2(x-8)+5(x-8)$
$(x-8)(6x^2+5)$
$7x^2(5x-4)-4(5x-4)$
$(5x-4)(7x^2-4)$
$7n^2(n+3)-5(n+3)$
$(n+3)(7n^2-5)$
$7x(y-7)+5(y-7)$
$(y-7)(7x+5)$
$7r^2(6r-7)+3(6r-7)$
$(6r-7)(7r^2+3)$
$8x(2y-7)+1(2y-7)$
$(2y-7)(8x+1)$
$m(3n-8)+5(3n-8)$
$(3n-8)(m+5)$
$2x(y-4x)+7y^2(y-4x)$
$(y-4x)(2x+7y^2)$
$m(5n+2)-5(5n+2)$
$(5n+2)(m-5)$
$5x(8y+7)-y(8y+7)$
$(8y+7)(5x-y)$
$8x(y+7)-1(y+7)$
$(y+7)(8x-1)$
$12y+10xy+30+25x$
$2y(6+5x)+5(6+5x)$
$(6+5x)(2y+5)$
$24xy-20x+25y^2-30y^3$
$4x(6y-5)-5y^2(6y-5)$
$(6y-5)(4x-5y^2)$
$-6u^2+3uv+14u-7v$
$-3u(2u-v)+7(2u-v)$
$(2u-v)(-3u+7)$
$56ab-16b-49a+14$
$8b(7a-2)-7(7a-2)$
$(7a-2)(8b-7)$

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