Use what you know about addition and subtraction of polynomials to find the missing term represented by the question mark in each equation. (–4x2 + 6x + 3) + (8x + 5 + ?) = 2x2 + 14x + 8 ? = (–b3 + 3b2 + 8) – (? – 5b2 – 9) = 5b3 + 8b2 + 17

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step-by-step explanati∵∵∴∴on:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

x=6 and x=3

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