Quadratic Equations
Hong Kong
Stage 4 - Stage 5
Solving using the quadratic formula
Interactive practice questions
The standard form of a quadratic equation is $ax^2+bx+c=0$ax2+bx+c=0.
Identify the values of $a$a, $b$b and $c$c in the quadratic equation $x^2+7x+10=0$x2+7x+10=0 with $a>0$a>0.
| $a$a | $=$= | $\editable{}$ |
| $b$b | $=$= | $\editable{}$ |
| $c$c | $=$= | $\editable{}$ |
Easy
< 1min
The standard form of a quadratic equation is $ax^2+bx+c=0$ax2+bx+c=0.
Identify the values of $a$a, $b$b and $c$c in the quadratic equation $x^2-3x-4=0$x2−3x−4=0 with $a>0$a>0.
Easy
< 1min
The standard form of a quadratic equation is $ax^2+bx+c=0$ax2+bx+c=0.
Identify the values of $a$a, $b$b and $c$c in the quadratic equation $2x^2+9x=0$2x2+9x=0 with $a>0$a>0.
Easy
< 1min
The standard form of a quadratic equation is $ax^2+bx+c=0$ax2+bx+c=0.
Identify the values of $a$a, $b$b and $c$c in the quadratic equation $8x^2-3x=0$8x2−3x=0 with $a>0$a>0.
Easy
< 1min
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