Question

simplify (root 7 + root 2) square

Answer 1

Answer:

9+2√14

Step-by-step explanation:

(√7+√2)²

=(√7)²+(√2)²+2×(√7)×(√2)

=7+2+2√14

=9+2√14

Answer 2

Concept

The formula for (a+b)² = a²+2ab+b²

Given

The equation given is $(\sqrt{7}+\sqrt{2})^2$

Find

We need to simplify the equation

Solution

We need to solve the equation

So As we know that $(a+b)^2 = a^2+2ab+b^2$

∴ (√7)²+2(√7)(√2)+(√2)²

= 7+2√14+2

= 9 + 2√14

Hence the solution is 9 + 2√14

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