Question

0.75×0.75+0.25×0.25+2×0.75×0.25 simplify using formula​

Answer 1

Answer:

You might have written the ques wrong

It wud be 0.75*0.75+0.075+0.1*0.1 in numerator

Well this is just an identity

a^3-b^3 = (a-b)(a^2+ab+b^2)

So 0.75*0.75*0.75 - 0.1*0.1*0.1 = a^3-b^3

So open it like the above formula

Then common numerator and denominator will cancel out

a-b will be left i.e 0.75-0.1 = 0.65

Ans

Learn a^3-b^3 and a^3+b^3 identity

Step-by-step explanation: