Math, asked by harshitkumar46623, 4 months ago

identities
(a) (3x + 7) (3x + 7)​

Answers

Answered by makarshi786
5

Answer:

3x) ² + 7² + 2× 3x ×7

9x² + 49 + 42x

Answered by DasRicha
3

Given:-

(3x + 7) (3x + 7)

According to the question:-

(3x + 7) (3x + 7)

∴ (3x + 7)²

Formula Required:-

(a + b)²= a² + 2ab + b²

As Here:-

a = 3x

b = 7

Explanation:-

(3x + 7) (3x + 7)

⇒ 3x² + 2 × 3x × 7 + 7²

⇒ 9x + 42x + 14

Answer:-

9x + 42x + 14

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