Question

Pls tell me which one is the correct one

Answer 1

Answer:

Option B

Step-by-step explanation:

Given expression is,

(x² - 18x + 180)

Which is in the form of (ax² + bx + c)

To factorize the given expression, we will split b in two parts $b_1$ and $b_2$ so that,

$b=b_1+b_2$

And $c=b_1\times b_2$

If b = 18,

$b_1=10$ and $b_2=8$

c = 10 × 8 = 80

Therefore, (x² - 18x + 180) = x² - 10x - 8x + 80

                                           = x(x - 10) - 8(x - 10)

                                           = (x - 8)(x - 10)

Option B is the correct option.