8. Solving Quadratic Equations
8.05 The quadratic formula and the discriminant
Adaptive
Worksheet
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
Solve $-6+7x+5x^2=0$−6+7x+5x2=0 for $x$x by using the quadratic formula or otherwise.
Write each solution on the same line, separated by a comma.
Easy
3min
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