Factorize the expression x(a - c) + y(c - a)
If y ∝ \(\frac{1}{x^2}\) and x = 3, when y = 4, find y when x = 2
Solve the equation 3x\(^2\) + 25x - 18 = 0
Solve the equation (x + 2)(x - 7) = 0
Solve the following simultaneous equations: x + y = \(\frac{3}{2}\), x - y = \(\frac{5}{2}\). And use your result to find the value of 2y + x.
