Factorize the expression 2s\(^2\) - 3st - 2t\(^2\).
Solve the equation x\(^2\) - 2x - 3 = 0
Write as a single fraction: \(\frac{5}{6r} - \frac{3}{4r}\)
Factorize 2x\(^2\) - 21x + 45
Solve the simultaneous equations y = 3x; 4y - 5x =14
