Thursday

October 23, 2014

October 23, 2014

Posted by **raja harishchandra** on Monday, June 24, 2013 at 10:54am.

- math -
**Steve**, Monday, June 24, 2013 at 11:00amsince all squares are >= 0, both squared expressions must be zero. So you need

x+y-40 = 0 and

x-y-18 = 0

2x-58 = 0

x = 29

y = 11

Only one real value for x satisfies the equation

**Answer this Question**

**Related Questions**

plllllls heeeeeeelp math - Let f(x)=3^(171x−3)−3^(114x+2)+3^(57x+3...

Math (Algebra) - If a is a real number and a cubic equation f(x) = x^3 − ...

Math (Quadratics)(Discriminants) - If a is a real number and a cubic equation f(...

maths - As x,y,z ranges over all possible real numbers, what is the minimum ...

ALGEBRA(Sum of Absolute Value Differences) - As x ranges over all real values, ...

Algebra - If a is a real number and a cubic equation f(x)=x^3−12x^2+(a+20)...

biology - Given the part of the molecule shown below, can the underlined atom ...

math (please help!) - What is the sum of all the constants k such that |x^2&#...

Maths - A sequence {ai}is defined by the recurrence relation an=40−4an&#...

calculus - Find an equation for the surface consisting of all points P(x, y, z) ...