Step-by-step explanation:
a^2 - b^2= (a+b) (a-b)
= (7x + 3) (7x - 3)
Hope it helps..........
[tex]49 {x}^{2} - {9}^{2} [/tex]
[tex](7x) {}^{2} - 9 {}^{2} [/tex]
[tex] {x}^{2} - {y}^{2} = (x - y)(x + y)[/tex]
[tex](7x - 9)(7x + 9)[/tex]
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Verified answer
Step-by-step explanation:
a^2 - b^2= (a+b) (a-b)
= (7x + 3) (7x - 3)
Hope it helps..........
[tex]49 {x}^{2} - {9}^{2} [/tex]
[tex](7x) {}^{2} - 9 {}^{2} [/tex]
[tex] {x}^{2} - {y}^{2} = (x - y)(x + y)[/tex]
[tex](7x - 9)(7x + 9)[/tex]