Math, asked by KNOWLEDGEKADAD, 10 months ago

FACTORISE USING SUITABLE GROUPING
9x^2+42x+49-84x

Answers

Answered by mbpattanashetti15

0

Answer:

given:-

9x² + 42x- 84x+ 49=0

9x²-42x+49=0

9x²-21x-21x+49=0

3x(3x-7)-7(3x-7)=0

(3x-7) (3x-7)=0

3x-7=0. 3x-7=0

3x=7. 3x=7

x=7/3. x=7/3

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