Expand.
(1) (5 x-7) (5 x-9)
(2) (2 x-3 y)
(3) (a +1/2)^3
Answers
Answered by
0
Answer:
x multiple sign hai..?
1.25x²+35-45x+63
=25x²-45x+98
Answered by
1
Step-by-step explanation:
1) (5x-7)(5x-9)
=25x^2-45x-35x+63
=25x^2-80x+63
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