Question

$(4 + x)(5 -x) \div (2 + x)(7 - x)$
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Answer 1

$(4 + x)(5 -x) \div (2 + x)(7 - x) \\( 20 - 4x + 5x - {x}^{2} ) \div (14 - 2x + 7x - {x}^{2} ) \\ (20 + x + {x}^{2} ) \div (14 + 5x - {x}^{2} )$

Arranging into standard form

$\frac{ {x}^{2} + x + 20 }{ - {x}^{2} + 5x + 14}$

Hope this will be helpful.

Answer 2

Step-by-step explanation:

=(20-4x+5x-x^2)/(14-2x+7x-x^2)

=(20+x-x^2)/(14+5x-x^2)