. If a = x + 2y and b = x - 2y, find (2a + b)
(a - 2b), in terms of x and y.
2
Answers
Answered by
4
Answer:
2a+b=2x+4y+x-2y=3x+4y
a-2b=x+2y-2x+4y=6y-x
Answered by
1
Answer:
= 3x^2 - 16xy -12y^2............
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