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Coordinate Geometry
Question
Wired Faculty App

Use suitable identities to find the following products:

(i) (x + 4)(x + 10) 

Answer

x + 4)(x + 10)
(x + 4)(x + 10) = x2 + (4 + 10)x + (4)(10)
| Using Identity IV
= x2 + 14x + 40.

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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

Write the coefficients of x2 in each of the following:
2 - x2 + x3