Question

Q1) Use the identity (x + a) (x + b) = x2 + (a + b) x + ab to find the following products.





(iii) (x - 5) (x - 1)​

Answer 1

Answer:

[x-5][x-1]

let a= -5 & b= -1

[x]^2+x[-5-1]+[(-5)(-1)]

x^2-6x+5

Answer 2

Answer:

x^2 - 6x +5

Step-by-step explanation:

ans:

by using x^2 + (a+b)x + ab,

= x×x ((-5)+(-1))x (-5×-1),

= x^2 (-5-1)x +5

= x^2 -6x ×5

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