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Coordinate Geometry
Question
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Factorise each of the following:

 x2 + 2ax - b2 - 2ab

Answer

x2 + 2ax - b2 - 2ab

x2 + 2ax - b2 - 2ab = (x2 - b2) + (2ax - 2ab)
= (x- b)(x + b) + 2a(x - b)
| Using Identity III
= (x - b)(x + b + 2a)

Sponsor Area

Some More Questions From Coordinate Geometry Chapter

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

4x2 - 3x + 7

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

x10+ y3 + t50

Write the coefficients of x2 in each of the following:

2 + x2 + x