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max2010maxim [7]
2 years ago
11

Pls help asap

Mathematics
1 answer:
Helen [10]2 years ago
7 0
Answer:
a) 15 + 12y
b) 14y - 27xy^2 + 18y^3
c) 12ar + 54abr - 120br

Solution:
a) 5x3 + 6x2y
15 + 6 x 2y
= 15 + 12y

b) 7x2y - 27xy^2 + 18y^3
=14y - 27xy^2 + 18y^3

c) 6a2r + 54arb - 60b2r
= 12ar + 54abr - 120br
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