subtract 6x2-3x+5 from 10x2-5x-9
add
5a-66,29-36-a+46
please answer them
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Step-by-step explanation:
(10x^2-5x-9)-(6x^2-3x+5)
=10x^2-5x-9-6x^2+3x-5
=10x^2-6x^2-5x+3x-9-5
=4x^2-2x-14
=2(2x^2-x-7)
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