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Coordinate Geometry

Question

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Use suitable identities to find the following products:
(3 - 2x)(3 + 2x)

Solution

3 - 2x)(3 + 2x)
(3x - 2x)(3 + 2x) = (3)² - (2x)²| Using Identity III
= 9 - 4x².

Some More Questions From Coordinate Geometry Chapter

Find the value of n, given (81)^5/n = 243.

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

4x² - 3x + 7

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