Question

The expression (12.96×12.96+12.96×B+0.04×0.04) will be a perfect square when B is equal to _________
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Answer 1

Answer:

B is 12.96

Step-by-step explanation:

because then value will be in form

a²+b²+c²

which is (might) be perfect square

Answer 2

Answer:

0.04(4199.08+324B)

Step-by-step explanation:

(12.96×12.96+12.96×B+0.04×0.04)

=(324/25×12.96+12.96B+0.04×0.04)

=(324/25×324/25+12.96B+0.04×0.04)

=(324/25×324/25+324/25×B+0.04×0.04)

=(324/25×324/25+324/25×B+1/25×0.04)

=(324/25×324/25+324/25×B+1/25×1/25)

=1/25(324×324/25+324B+1/25)

=1/25(104976/25+324B+1/25)

=1/25(104977/25+324B)

=0.04(4199.08+324B)