Question

Find two numbers whose sum is 12 and whose product is 35 solution

Answer 1

x+y =12

xy=35

y =12-x substitute y in xy =35

we get x and y as 7 and 5

Answer 2

Answer:

Step-by-step explanation:

Let numbers be x, y

Given sum is 12

That is x+y = 12

y=12-x

Given product is 35

That is x. y = 35

x. (12- x) =35

12x- x2= 35

x2- 12x+35 =0

x2 - 7x - 5x - 35= 0

x(x-7) + 5( x - 7) = 0

(x -7) (x+5) =0

x-7 = 0 or x+5 =0

x = 7 or x= -5

So the solutions are 7, -5