Quadratic Equations
Hong Kong
Stage 4 - Stage 5
Further Applications
Interactive practice questions
Solve the following equation for $b$b using the PSF method of factorisation: $15-11b-12b^2=0$15−11b−12b2=0
Write all solutions in fraction form, on the same line separated by commas.
Easy
3min
Solve the following quadratic equation:
$20x^2-24x+1=-5x^2-4x-3$20x2−24x+1=−5x2−4x−3
Easy
2min
Solve for the unknown, leaving your answer in exact form.
$-3x=\left(3x+5\right)\left(x-1\right)$−3x=(3x+5)(x−1)
Easy
3min
The sum of two integers is $70$70.
Easy
3min
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