Question

EXERCISE 9.4
EXERCISE 9.4
1. Multiply the binomials.
@ (2x + 5) and (4x - 3)​

Answer 1

Answer: $8x^{2} +4x-15$

Explanation:

$(2x+5)(4x+3)$

⇒$2x(4x-3)+5(4x-3)$

⇒$8x^{2} -6x+20x-15$

⇒$8x^{2} +4x-15$

Answer 2

The correct answer is "8x²+14x-15".

Explanation:

$The \ given \ binomials \ are:\\\\(2x+5) \ and \ (4x-3)\\\\On \ applying \ multiplication,we \ get\\\\=2x(4x-3)+5(4x-3)\\\\=8x^2-6x+20x-15\\\\=8x^2+14x-15$

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