Question

(x+3) (x+3)=
(7a-9b) (7a-9b)

Answer 1

Answer:

1.

${(x + 3)}^{2} = {x}^{2} + {3}^{2} + 2 \times x \times 3$

$= {x}^{2} + 9 + 6 x$

2.

${(7a - 9b)}^{2} = {(7a)}^{2} + {(9b)}^{2} - 2 \times 7a \times 9b$

$= 49 {a}^{2} + 81 {b}^{2} - 126ab$

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Answer 2

Dear student i have done it half this half answer can give you the hint to get answer

Hope this helps you pls pls pls mark me as brainliest it's a humble request to you pls pls pls.