Equations
Hong Kong
Stage 4 - Stage 5
Solve Equations with Negative Exponents
Interactive practice questions
Solve $8x^{-2}-6x^{-1}+1=0$8x−2−6x−1+1=0.
Easy
3min
Solve $-15x^{-2}+4x^{-1}+3=0$−15x−2+4x−1+3=0. Write all solutions on the same line, separated by a comma.
Easy
5min
Solve $2x^{-2}+x^{-1}=6$2x−2+x−1=6.
Easy
2min
Solve $\frac{y^{\frac{5}{7}}-y^{-\frac{2}{7}}}{y}=0$y57−y−27y=0.
Easy
3min
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