2 years ago

Simplify by subtracting 2 2 (x +3x-4)-(2x -5x+6)

Mathematics

1 answer:

exis [7]2 years ago

7 0

Answer:

$=-x^2+8x-10$

Step-by-step explanation:

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=x^2+3x-4-\left(2x^2-5x+6\right)$

$Simplify.$

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Rearranging the first equation gives:

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Substituting this into the other equation gives:

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If x=-1:

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