Quadratic Equations

Hong Kong

Stage 4 - Stage 5

Solve for the two possible values of $x$`x`:

$10x^2+40x=0$10`x`2+40`x`=0

Write all solutions on the same line separated by commas.

Easy

1min

Solve for $x$`x`:

$11x^2=7x$11`x`2=7`x`

Easy

1min

Solve for $x$`x`:

$81x^2-64=0$81`x`2−64=0

Easy

1min

Solve the equation $4x^2+8x-32=0$4`x`2+8`x`−32=0.

Easy

1min

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