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Subject :IMO Class : Class 6

What is the value (12 – 8)² + 21 – 4?

A1
B3
C33
D1,089

Answer C .Please explain why???

Ans 1: (Master Answer)

from ,

Class :

The solution is :- 144+64 - 2x12x8 + 21 - 4 = 33.