Q. 1 B5.0( 2 Votes )

# Using suitable identities find the products.(x – 5) (x + 8)

Using identity -

(x + a)(x + b) = x2 + (a + b)x + ab, we get -

(x + (– 5)) (x + 8) = x2 + (– 5 + 8)x + (– 5)× 8

= x2 + 3x – 40

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Polynomials29 mins
Polynomials - Zero to Hero42 mins
Genius Quiz | Polynomials40 mins
Zeros and Degrees of a Polynomial41 mins
Methods to find zeroes of a Polynomial-246 mins
Remainder Theorem and Factor Theorem38 mins
Genius Quiz | Division of Algebraic Expressions37 mins
Introduction to Polynomials37 mins
Basic understanding of Polynomials37 mins
Quiz | Imp. Qs. on Algebraic Identities65 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses