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iGCSE (2021 Edition)

14.04 Solving equations with technology

Interactive practice questions

Solve the following equation by using the solve command on your calculator or otherwise.

$3x^2-x-10=0$3x2x10=0

Write all solutions together on the same line, separated by commas.

Easy
1min

Solve the following equation by using the solve command on your CAS calculator or otherwise.

$x^2+2x-\frac{21}{4}=0$x2+2x214=0

Write all solutions together on the same line, separated by commas.

Easy
1min

Consider the equation $3x^2=6$3x2=6.

Easy
2min

Using the solve command on your calculator, or otherwise, find the roots of $4.6x^2+7.3x-3.7=0$4.6x2+7.3x3.7=0.

Give your answers as decimal approximations to the nearest tenth. Write the decimal approximations for both roots on the same line, separated by a comma.

Easy
2min
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Outcomes

0607C2.11

Use of a graphic display calculator to solve equations, including those which may be unfamiliar.

0607E2.10B

Solution of quadratic equations by using a graphic display calculator.

0607E2.11

Use of a graphic display calculator to solve equations, including those which may be unfamiliar.

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