Question

What is the solution to the following system of equations?
y^2+x^2=53
y-x=5
a)(-10,-5)
b)(-7,-2)
c)(7,2)
d)(5,10)

Answer 1

y - x = 5
=> y = 5 + x

plug y == 5+x, in y^2+x^2=53

Answer 2

@15Twilight ???

Answer 3

ok but then I get (5+x)^2+x^2=53 what do I do next

Answer 4

open the (5 +x)^2, using two degree binomial expansion ( in simple words (a+b)^2 = a^2 + b^2 +2ab )

Answer 5

thank you @gudden