Question

What are the factors of x2 – 4x – 5? Check all that apply.

a. x – 5
b. x – 2
c. x – 1
d. x + 1
e, x + 2
f. x + 5

Answer 1

Answer:

hey mate

Step-by-step explanation:

refer to the attachment please....A,D,

Answer 2

Given :  x²  - 4x   - 5

To find : factors

Solution:

x²  - 4x   - 5

= x² - 5x  + x  - 5

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

= (x + 1)(x - 5)

Hence x+ 1   &  x - 5 are the factors of x²  - 4x   - 5

=> - 1  & 5 are zeroes of x²  - 4x   - 5

Verification :

(-1)²  - 4(-1)   - 5  = 1 + 4 - 5 = 0

(5)²  - 4(5)   - 5  = 25 -20 - 5 = 0

x+ 1   &  x - 5 are the factors of x²  - 4x   - 5

option a & d are correct

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