Which polynomial represents the sum: $(14x^2-14)+(-10x^2-10x+10)$ ?

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Answer 1 · 2016-12-31T11:32:16

$4x^2-10x-4$

Note that I have used the place keeper of $0x$ in the second line. This represents that there are not any $x$ terms

$-10x^2-10x+10$
$ul(color(white)(..)14x^2+color(white)(1)0x-14) larr" Add"$
$" "color(white)(.)4x^2-10x-4$

Which polynomial represents the sum: (14x^2-14)+(-10x^2-10x+10)(14x^2-14)+(-10x^2-10x+10)?