add 7x³+2x²-5x-7 and -5x²+x³+4x-5
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Answered by
2
Step-by-step explanation:
ANSWER
4x3−7x2+9,3x2−5x+4,7x3−11x+1,6x2−13x
On adding the expressions, we have
= 4x3−7x2+9+3x2−5x+4+7x3−112+1+6x2−13x
= 4x2+7x3−7x2+3x2+6x2+5x−11x−13x+9+4+1
= 11x3−2x2−29x+14
Answered by
1
Step-by-step explanation:
8x3-3x2-x+12
8*3_3*2_*+12
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