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iGCSE (2021 Edition)

14.03 Quadratic formula (Extended)

Interactive practice questions

Solve $x^2+5x+6=0$x2+5x+6=0 for $x$x by using the quadratic formula or otherwise.

Enter each solution on the same line, separated by a comma.

Easy
2min

Solve $-6+7x+5x^2=0$6+7x+5x2=0 for $x$x by using the quadratic formula or otherwise.

Enter each solution on the same line, separated by a comma.

Easy
4min

Solve $4x^2+7x+3=0$4x2+7x+3=0 for $x$x by using the quadratic formula or otherwise.

Enter each solution on the same line, separated by a comma.

Easy
2min

Solve $4x^2-17x-15=0$4x217x15=0 for $x$x by using the quadratic formula or otherwise.

Enter each solution on the same line, separated by a comma.

Easy
3min
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Outcomes

0607E2.10C

Solution of quadratic equations using the quadratic formula.

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