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RS Aggarwal Solutions Class 8 Mathematics Solutions for Operations on Algebraic Expressions Exercise 6E in Chapter 6 - Operations on Algebraic Expressions

Question 4 Operations on Algebraic Expressions Exercise 6E

(2x+3) (3x-1) =?

(a)\left(6x^2+8x-3\right)

(b)\left(6x^2+7x-3\right)

(c)\left(6x^2-7x-3\right)

(d)\left(6x^2-7x+3\right)

Answer:

\text{ (b) }\left(6x^2+7x-3\right)

Explanation:

Given (2x+3) (3x-1)

By solving in horizontal method we get

(2x+3) (3x-1)= 2x (3x-1) + 3 (3x-1)

(2x+3)(3x-1)=\left(6x^2+7x-3\right)

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