Answer: 22
<u>Step-by-step explanation:</u>
f(x) = 2x² - 3x + 8
f(-2) = 2(-2)² - 3(-2) + 8
= 2(4) + 6 + 8
= 8 + 6 + 8
= 22
Answer:
19 sin + 20 cosec
explanation
9 sin A + 10 sinA + 33 -13 cosecA
19 sin + 20 cosec
Answer:
(x+1)(x²-4x+1)
Step-by-step explanation:
f(x) = x³-3x²-3x+1
= (x³+1) - 3x (x+1)
= (x+1)(x²-x+1) - 3x(x+1)
= (x+1)(x²-x+1-3x)
= <u>(x+1)(x²-4x+1)</u>
<u />
** (x+1)(x²-4x+1) = (x+1)((x-2)² - 3)
= (x+1)((x-2)² - (√3)²)
= (x+1)(x-2-√3)(x-2+√3)
This is the answer ......
