Question

maths experts plz solve these prblm​

Answer 1

2x² - x - 1 = (2x + 1)(x - 1)

2x         1

x           -1

2x² + 5x + 3 = (2x + 3)(x + 1)

2x             3

x                1

If x - 3 is a factor then x - 3 = 0 then the remainder is 0.

3³ - 3×3² + 4×3 - 12 = 27 - 27 + 12 - 12 = 0

Therefore x - 3 is a factor.

Answer 2

Answer:

x-3 is factor

Hope it helped