3 years ago

Subtract (7x - 10)-(-6x - 8).

Mathematics

1 answer:

puteri [66]3 years ago

5 0

(7x-10) - (-6x-8)

distribute the negative to the (-6x-8)

(7x-10) + 6x+8

disregard the parenthesis because addition is associative

7x-10 + 6x+8

combine like terms

13x-2

13x-2 is the answer

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$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\
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