Question

factorise 2x Cube + 5 x square - 5 x minus 2​

Answer 1

Step-by-step explanation:

$2x ^{3} + 5x ^{2} - 5x - 2$

$(1) =2(1)^{3} + 5(1) ^{2} - 5(1) - 2$

$2 + 5 - 5 - 2 = 0$

Answer 2

Answer:

p(x) =  2x³+ 5x² - 5x - 2

p(1) = 2(1)³ + 5(1)² - 5(1) - 2

= 2+5 - 5 - 2

= 0

p(x) = 1

therefore (x-1 ) is a factor of p(x)

now divide P(x) by (x-1)

The answer (quotient) on dividing is:

2x²+7x+2

answer:

(x-1) ( 2x²+7x+2)