factorise x square -81
Answers
Answered by
37
x^2 - 81
x^2 - 9^2. {a^2 - b^2 = (a + b)(a - b)}
(x + 9)(x - 9) Ans
x^2 - 9^2. {a^2 - b^2 = (a + b)(a - b)}
(x + 9)(x - 9) Ans
akiash:
long process
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no its not long but of two three lines
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the i will help you again
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Answered by
17
x^2-81
=(x+9)(x-9)
hey mate here is your answer
=(x+9)(x-9)
hey mate here is your answer
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