Question

help please

Answer 1

Try to factorise the expressions in the numerator and denominator. Can u plz tell me vat u get?

Answer 2

i tried i dont know how

Answer 3

First let us take the expression in the numerator.
2x^2+16x+30.
As u can see 2 is common to all three terms. so let us first take it out.
Then u get
2(x^2+8x+15)
Nw to factorise x^2+8x+30 we have to find two numbers such that their sum is 8 and product is 15.
U will find that 5 and 3 satisfy the above conditions.
2(x^2+8x+15)
=2(x^2+(5+3)x+(5*3))
=2(x^2+5x+3x+15)
Nw let us take x^2 and 5x together and see vat is common to both of them.
U will find x is common to both of them and when u take it out u will get
x(x+5).
similarly
3x+15
=3(x+5)
Nw combining both of this giv u
2(x^2+5x+3x+15)
=2(x+5)(x+3)
Does that makes sense?
Similarly can u factorise the expression in the denominator?