FIND THE SQUARE OF 42 WITHOUT ACTUAL MULTIPLICATION WITH EXPLANATION.A

1.	FIND THE SQUARE OF 42 WITHOUT ACTUAL MULTIPLICATION WITH EXPLANATION.ANSWER RIGHT OTHERWISE I WILL REPORT YOUR QUESTION.
Answer» Answer: as we know that (a+b)^2 = a^2 + 2ab + b^2 now LET a = 40 and b = 2 substitute the values, =>(40+2)^2 = (40)^2 + 2×40×2 + (2)^ =>(42)^2 = 1600 + 160 + 4 =>(42)^2 = 1764 THEREFORE the SQUARE root of 42 is 1765 HOPE IT HELPS:)

FIND THE SQUARE OF 42 WITHOUT ACTUAL MULTIPLICATION WITH EXPLANATION.ANSWER RIGHT OTHERWISE I WILL REPORT YOUR QUESTION.

Answer»

Answer:

as we know that (a+b)^2 = a^2 + 2ab + b^2

now LET a = 40

and b = 2

substitute the values,

=>(40+2)^2 = (40)^2 + 2×40×2 + (2)^

=>(42)^2 = 1600 + 160 + 4

=>(42)^2 = 1764

THEREFORE the SQUARE root of 42 is 1765

HOPE IT HELPS:)