☰
✕

Coordinate Geometry
Question
Wired Faculty App

Factorise each of the following:

a4 - 16b4 

Answer

a4 - 16b4

a4 - 16b4 = (a2)2 - (4b2)2 = (a2 - 4b2)(a2 + 4b2)
| Using Identity III
= {(a)2 - (2b)2}(a2 + 4b2)
= (a + 2b)(a - 2b)(a2 + 4b2)
| Using Identity III

Sponsor Area

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