Biology, asked by santhosh122005, 1 year ago

Solve this equation using an algebraic method: (x + 4)( x - 4) = 9

Answers

Answered by Sk218

4

Answer:

Answer in above picture or attachment

Attachments:

Answered by manas3379

1

Explanation:

we know (a+b)(a-b) = a² - b²

Therefore,

(x+4)(x-4)=9

x² - 16 = 9

x² = 25

x = +_ 5

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