Question

Add the following.
(1).7ax²,-8ax²,-14ax²
(2).7x²-4x+7,-11x²-x-5,-7x²+7x+3
(3)2/3xy²-1/2x²y-1/4,1/3xy²+3/4x²y+1/3,3/4xy²-1/4x²y+1/4
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Answer 1

Answer:

(1) -15ax² is sum of 7ax²,-8ax²,-14ax