Question

Factories the following the algebraic expression (a) x2+x-6 (b) 2x2-13x-7

Answer 1

a
x2+x-6
=x2+3x-2x-6
=x(x+3)-2(x+3)
b
2x2-13x-7
=2x2-14x+1x-7
=2x(x-7)+1(x-7)
Hope this will help you....

Answer 2

The correct answer is "x = 2,-3" and "x = 7,-1/2".

Step-by-step explanation:

$The \ given \ expressions \ are:\\\\a...\\x^2+x-6\\On \ factorizing \ the\ above \ equation,we \ get\\x^2+3x-2x-6=0\\x(x+3)-2(x+3)=0\\(x-2)(x+3)=0\\x-2=0\\x=2\\Or,\\x+3=0\\x=-3\\\\b...\\2x^2-13x-7\\2x^2-14x+x-7=0\\2x(x-7)+1(x-7)=0\\(2x+1)(x-7)=0\\x-7=0\\x=7\\Or,\\2x+1=0\\x=-\frac{1}{2}$

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