Question

Evaluate the following using (x+a)(x+b)=X²+(a+b)x+ab

56*48

Answer 1

Hello...
Answer...

$56 \times 48 = (50 + 6)(50 - 2) \\ \\ = (50 + 6) \times (50 + ( - 2)) \\ \\ = {(50)}^{2} + (6 + ( - 2)) \times 50 + 6 \times - 2 \\ \\ = 2500 + 4 \times 50 - 12 \\ \\ = 2500 + 200 - 12 \\ \\ = 2700 - 12 \\ \\ = 2688$


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Answer 2

hay!!

=> 56×48=(50+6) (50-2)

=> (50+6) (50-2)

=> (50)²+ (6-2) × 50+6×(-2)

=> 2500+4×50-12

=> 2500+200-12

=> 2688

I hope it's help you