Question

factorise. 2x cube+9x. square-8x-15

Answer 1

Answer:

zeroes of the equation are

-1 ,3/2, -5

hope it helps

Step-by-step explanation:

putting x=-1 in equation we get our first zero so x=-1 then x+1 is a factor so on dividing the equation by its factor we'll get other zeroes too.

after dividing we get 2x^2+7x-15

2x^2+10x-3x-15 middle term split

2x-3 x+5

so x=-5 and 3/2