Question

if P^2=7+4√3 than P=?

Answer 1

Hope it helps you......

Answer 2

Concept

The formula a^2 - b^2 is also known as the "difference of squares formula". The square of a minus the square of b is used to find the difference between two squares without actually calculating the squares.

It is one of the algebraic identities.

It is used to factor binomial squares.

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

Multiplying (a - b) and (a + b) gives us

=a(a+b) -b(a + b)

=a^2 + ab - ba - b^2

=a^2 + 0 + b^2

=a^2 - b^2

Therefore verified

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

Given

It is given that P^2=7+4√3

Find

We need to find the value of P

Solution

P^2=7+4√3

P^2 = (√(7+4√3))^2

P^2 - (√(7+4√3))^2 = 0

(P - √(7+4√3)) (P + √(7+4√3)) =0

P = ± √(7+4√3 )

Hence the value of P is ± √(7+4√3 )

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