herinchi herinchi

17-12-2021
Mathematics

contestada

evaluate (105-15)square

Respuesta :

maheshsinghmeenu maheshsinghmeenu

17-12-2021

Answer:

14400

Step-by-step explanation:

(105-15)²

We will solve it with Identity:

(a-b)² = a²+2ab-b²

So,

105²+ 2(105)(15)+15²
11025+ 2(1575) +225
11025+3150+225
14400

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