Madhya Pradesh Police Exam Model Paper 1

Question : 52 of 100

Marks: +1, -0

x^2 - 12x + 36

is equal to _____?

Solution:

Concept used:

(a – b)^2 = a^2 – 2ab + b^2

Calculations:

x^2 – 12x + 36

⇒ (x)^2 – 2 × 6 × x + (6)^2

⇒ (x – 6)^2

$∴ x^2– 12x + 36$ is equal to $(x – 6)^2$

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