Question

simplify and solve with identity - (2.5 )²​

Answer 1

Answer:

6.25

Step-by-step explanation:

(2.5)² = (2+0.5)²

= 2²+0.5²+2x2x0.5 [(a+b)² = a²+b²+2ab]

= 4 + 0.25 + 2

= 6.25

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