Subtract (x3 + 3x2y + 6xy2 - y3) from (y2 – 5xy2 - 4x²y)
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Question 1:
Add the following:
(i) 3x and 7x
(ii) −5xy and 9xy
ANSWER:
We have
(i) 3x + 7x = (3 + 7)x = 10x
(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy
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