topic badge

1.05 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 $4x^2+3x=5$4x2+3x=5 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 $3x^2-8x+2=9x-7$3x28x+2=9x7 with $a>0$a>0.

Easy
1min

Consider the following statement:

'Any quadratic equation that can be solved by completing the square can be solved by the quadratic formula.'

Is it true or false?

Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

1.1.9

solve quadratic equations including the use of the quadratic formula and completing the square

1.1.11

determine turning points and zeros of quadratics and understand the role of the discriminant

What is Mathspace

About Mathspace