Question

evaluate each expression using algebraic identity. 72 square​

Answer 1

Answer:

5184

Step-by-step explanation:

$\implies$ $\sf{(72)^2 }$

$\implies$ $\sf{ (70+2)^2}$

(a+b)² = a² + b² + 2ab

Data:

a = 70 ; b = 2

$\implies$ $\sf{(70)^2 + (2)^2 + 2(70)(2) }$

$\implies$ $\sf{ 4900 + 4 + 280 }$

$\therefore$ $\boxed{\sf{5184 }}$

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