Question

factorize 2y^2-5y-18​

Answer 1

Answer:

(2y-9)(y+2)

Step-by-step explanation:

2y²-5y-18

= 2y²-(9-4)y -18

= 2y² -9y+ 4y-18

= y(2y-9)+2(2y-9)

= (2y-9)(y+2)

Answer 2

SOLUTION

TO FACTORISE

$\sf 2 {y}^{2} - 5y - 18$

EVALUATION

Here the given expression is

$\sf 2 {y}^{2} - 5y - 18$

We factorise it as below

$\sf 2 {y}^{2} - 5y - 18$

$\sf = 2 {y}^{2} - (9 - 4)y - 18$

$\sf = 2 {y}^{2} - 9y + 4y - 18$

$\sf = y(2y - 9) + 2(2y - 9)$

$\sf = (2y - 9) (y + 2)$

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