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marshall27 [118]
3 years ago
12

If a=5x^2+3x-7 and b=-3x^2-7x+5 find b-a

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0

Answer:

-8x^2-10x+12

Step-by-step explanation:

first set up the problem:

(-3x^2-7x+5)-(5x^2+3x-7)

Since you are subtracting you need to distribute the (-) sign:

(-3x^2‐7x+5)(-5x^2-3x+7)

Now just combine like terms

-3x^2+(-5x^2= -8x^2

(-7x+(-3x= -10x

5+7= 12

set answer in standard form:

-8x^2-10x+12

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