Question

The values of4,5,6 and 7.5 are​

Answer 1

Explanation:

(7.5×7.5+37.5+2.5×2.5)

=(7.5)

2

+2×7.5×2.5+(2.5)

2

=(7.5+2.5)

2

....[Using a

2

+2ab+b

2

=(a+b)

2

]

=10

2

=100