HURRY PLEASE! The difference between two positive numbers is 4 and the sum of their squares is 170. What are the numbers? Do not guess or check. Show your work.

x = 11

y = 7

Step-by-step explanation:

Let x and y be the unknown numbers.

"The difference between two positive numbers is 4..." (1)

x - y = 4

Assuming that:

x and y ≥ 0

"...the sum of their squares is 170" (2)

x² + y² = 170

Arrange the first equation (1):

x - y = 4

x = 4 + y

Now substitute x to equation (2):

x² + y² = 170

(4 + y)² + y² = 170

y² + 8y + 16 + y² = 170

y² + y² + 8y + 16 = 170

2y² + 8y + 16 = 170

2y² + 8y = 170 - 16

2y² + 8y = 154

2y² + 8y - 154 = 0

Quadratic:

= 7

= -11

Recall that:

x and y ≥ 0 or that it is only positive.

So y = 7

Now solve for x in equation (1):

x = 4 + y

x = 4 + (7)

x = 11

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation: