(A) Evaluate the following using suitable algebraic identities: (1) 28 x 32 (ii) (x – 2y)^2
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Answer:
(1) 896
(2) x^2+4y^2-4xy
Step-by-step explanation:
(1) by multiplication
28*32=896
(2) by using the formula
(a-b)^2=a^2+b^2-2ab
(x-2y)^2=x^2+4y^2-4xy
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