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Simplify (3x2+9x-1)+(-5x2+6x-10)

User Sandesh K
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We can get rid of the parenthesees since there is only addition between them.
= 3x2 + 9x - 1 + -5x2 + 6x - 10

Now we can rearrange the terms so like terms are together.
= 3x2 - 5x2 + 9x + 6x - 1 - 10

Combine like terms. Just like 3 apples - 5 apples = -2 apples ....so does 3x2 - 5x2 = -2x2
= -2x2 + 15x - 11
User Othman Benchekroun
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