What is the product of x and y?

Question

Edward now wants you to solve these simultaneous equations.

a + B = 5 (1)

a2 - 28 = 13 (2)

Let x be the sum of the solutions to a.

Let y be the sum of the solutions to B.

What is the product of x and y?

To get your final answer, multiply this by 6451.754 and take the integer part.

Answer 1

a^2 - 28 = 26

a = +/-sqr54 = +/-3sqr6

x = + 3sqr6 - 3sqr6 = 0

x=0

a+b=5

0+b = 5

b = 5

y=5 or maybe 10 if you consider b=5 and b=5 as two solutions

either way

xy = 5(0) or 10(0) = 0

xy = 0

multiply that result by any real or imaginary number and you still get 0, a big goose egg