Question

If a=1 and b=2.Find the value of a^2+2ab+b^2.

Answer 1

Answer:

7

Step-by-step explanation:

Given : a=1 and b=2

To Find : a^2+2ab+b^2

insert the value of  a and b

1^2 + (1)(2) + 2^2

= 1 + 2 + 4

= 7

Answer 2

Answer:

9

Step-by-step explanation:

${a}^{2} = 1 \\ {1}^{2 } = 1 \\ {b}^{2} = {2}^{2} = 4 \\ ab = 1 \times 2 = 2 \\ so \: the \: ans \: is \: 1 + 2 \times 2 + 4 = 9$

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