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10.Simplify by using identities.

(1) (55)2

(ii) (15)2

Question

10.Simplify by using identities.

(1) (55)2

(ii) (15)2

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Mathematics
3 months
2021-07-24T12:29:11+00:00
2021-07-24T12:29:11+00:00 1 Answers
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## Answers ( )

Answer:1)3025

2)225

Step-by-step explanation:1)(a+b)^2=a^2+2ab+b^2

(55)^2=(50+5)^2=50^2+2×50×5+5^2

=3025.

2)(a+b)^2=a^2+2ab+b^2

(15)^2=(10+5)^2=10^2+2×10×5+5^2

=225