Question

1. Use suitable identities to find the following products:
(1) (x +4)(x+10)
(i) (x +8)(x - 10)
(iv) (v2+3) 012-3)
(iv). (y2 +
(v) (3–2x) (3 + 2x)​

Answer 1

Answer:

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1) (x + 4) ( x + 10)

=> x^2 + 10x + 4x + 40

=> x^2 + 14x + 40 Ans.

2) (x + 8) (x - 10)

=> x^2 - 10x + 8x - 80

=> x^2 - 2x - 80 Ans.

5) (3 - 2x) (3 + 2x )

=> Formula :

a^2 - b^2 = (a + b ) ( a - b )

=> 3^2 - 2x^2

=> 9 - 4x^2 Ans.

Step-by-step explanation:

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