Question

Simplify (3x + 7 ) 2 - (3x – 7) 2​

Answer 1

Answer:

28 is the answer

Step-by-step explanation:

6x+14-6x+14

6x and -6x will cut each other

14+14 = 28

Answer 2

Answer:

(3x+7)2- (3x-7)2

≈(6x+14) - (6x-14)

≈6x + 14 - 6x + 14

≈6x - 6x +14 + 14

≈ 28. [Ans]

Step-by-step explanation:

Just go on following the BODMAS Rule.

B - bracket

O - of

D - Division

M - Multiplication

A - Addition

S - Subtraction

First solve bracket part.., then of one .., then division..., followed by multiplication.., then addition n at last do subtraction....

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