Question

The sum of the two natural numbers is eight and product is fifteen find the numbers 

Answer 1

Answer:

let a number be x

then other be 8-x

x(8-x)=15

8x-x²=15

x²-8x+15=0

x²-3x-5x+15=0

x(x-3)-5(x-3)=0

(x-3)(x-5)=0

x-3=0. x-5=0

x=3. x=5

Step-by-step explanation:

the numbers be 3 and 5

Answer 2

• Let no.s be x & y
• sum. -----. x+ y = 8. ( equation 1)
• product. x*y. = 15
• x=15/y
• 15/y+y=8
• (15+y^2)/y=8

15+y^2=8y

• y^2-8y+15=0
• y^2-3y-5y+15=0
• y(y-3)-5(y-3)
• (y-5)or(y-3)=0
• y= 5
• OR
• Y=3

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