Question

(5a-1/2)(5a+3/2) solve using identities
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Answer 1

Answer:

This q can be solved by using the identity -

(x-a)(x-b) = xsquare-x(a-b)-ab

Here, x=5a a=1/2 b=3/2

square of 5a-5a(1/2-3/2)-1/2×3/2

25a2-5a(-1)-3/4

=25a2+5a-3/4