Question

Find the zeroes of the polynomial 2xsquare+ 14x+20

Answer 1

Step-by-step explanation:

let ,

p(x)=2x²+14x+20

=2x²+(4+10)x+20

=2x²+4x+10x+20

=2x(x+2)+10(x+2)

=(2x+10)(x+2)

if p(x)=0

(2x+10)(x+2)=0

if 2x+10=0

2x=-10

x=-5

if x+2=0

x=-2

since zeroes are -2 and -5

hope this helps you