Question

what are the two numbers that subtract to 2 and multipliys to 80?

Answer 1

Answer:

8 and 10 or (-10) and (-8)

Step-by-step explanation:

let the 1st no be x and 2nd no be y

x-y=2

y=x+2

(x)×(y)=80

(x)×(x+2)=80

x²+2x=80

x²+2x-80=0

x²-8x+10x-80=0

x(x-8) +10(x-8) =0

(x-8)(x+10) are the roots of the polynomial

x-8=0 , x+10 =0

x=8 , x=(-10)

hence the two no.s are (8 and 10) or (-10and -8)