I don’t know how to solve the question of class 9th ncert of Polynomials chapter of exercise 2.5 of math, give me the best and easy way for solving this chapter in easy and simple way Use suitable identities to find the following products:(ii) (x+8)(x –10)
AnilSinghBoraGuru
Use suitable identities to find the following products:(ii) (x+8)(x –10) Q.1(2)
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Using the identity, (x+a)(x+b) = x 2+(a+b)x+ab
[Here, a = 8 and b = −10]
We get,
(x+8)(x−10) = x2+(8+(−10))x+(8×(−10))
= x2+(8−10)x–80
= x2−2x−80