Question

Factorise:-2x square+5x-18 plz answer ​

Answer 1

Step-by-step explanation:

Step by step solution :

STEP

1

:

Equation at the end of step 1

(2x2 - 5x) - 18 = 0

STEP

2

:

Trying to factor by splitting the middle term

2.1 Factoring 2x2-5x-18

Answer 2

Answer:

(x - 2) (2x + 9)

Step-by-step explanation:

2x² + 5x - 18

Steps to be followed :-

1. Multiply the coefficient of x² and the constant term.
2. 2 × -18 = -36
3. Split the product in coefficient of x² and the constant term in such a manner that its sum or difference is the middle term and product is the product of coefficient of x² and the constant term.
4. Take common factor and proceed.
5. You are done!

2x² + 5x - 18

= 2x² + 9x - 4x - 18 [Splitting -36 into 9x and -4x so that the sum/difference is 5x and product is -36x²]

= x(2x + 9) -2(2x + 9)

= (x - 2) (2x + 9)