Aqbeż għall-kontenut ewlieni
Evalwa
Tick mark Image
Espandi
Tick mark Image
Graff

Problemi Simili mit-Tiftix tal-Web

Sehem

\frac{\left(x+4\right)\left(x+7\right)}{\left(x-7\right)\left(x+7\right)}-\frac{x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)}
Biex iżżid jew tnaqqas l-espressjonijiet, espandihom biex id-denominaturi tagħhom ikunu l-istess. L-inqas multiplu komuni ta' x-7 u x+7 huwa \left(x-7\right)\left(x+7\right). Immultiplika \frac{x+4}{x-7} b'\frac{x+7}{x+7}. Immultiplika \frac{x}{x+7} b'\frac{x-7}{x-7}.
\frac{\left(x+4\right)\left(x+7\right)-x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)}
Billi \frac{\left(x+4\right)\left(x+7\right)}{\left(x-7\right)\left(x+7\right)} u \frac{x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.
\frac{x^{2}+7x+4x+28-x^{2}+7x}{\left(x-7\right)\left(x+7\right)}
Agħmel il-multiplikazzjonijiet fi \left(x+4\right)\left(x+7\right)-x\left(x-7\right).
\frac{18x+28}{\left(x-7\right)\left(x+7\right)}
Ikkombina termini simili f'x^{2}+7x+4x+28-x^{2}+7x.
\frac{18x+28}{x^{2}-49}
Espandi \left(x-7\right)\left(x+7\right).
\frac{\left(x+4\right)\left(x+7\right)}{\left(x-7\right)\left(x+7\right)}-\frac{x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)}
Biex iżżid jew tnaqqas l-espressjonijiet, espandihom biex id-denominaturi tagħhom ikunu l-istess. L-inqas multiplu komuni ta' x-7 u x+7 huwa \left(x-7\right)\left(x+7\right). Immultiplika \frac{x+4}{x-7} b'\frac{x+7}{x+7}. Immultiplika \frac{x}{x+7} b'\frac{x-7}{x-7}.
\frac{\left(x+4\right)\left(x+7\right)-x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)}
Billi \frac{\left(x+4\right)\left(x+7\right)}{\left(x-7\right)\left(x+7\right)} u \frac{x\left(x-7\right)}{\left(x-7\right)\left(x+7\right)} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.
\frac{x^{2}+7x+4x+28-x^{2}+7x}{\left(x-7\right)\left(x+7\right)}
Agħmel il-multiplikazzjonijiet fi \left(x+4\right)\left(x+7\right)-x\left(x-7\right).
\frac{18x+28}{\left(x-7\right)\left(x+7\right)}
Ikkombina termini simili f'x^{2}+7x+4x+28-x^{2}+7x.
\frac{18x+28}{x^{2}-49}
Espandi \left(x-7\right)\left(x+7\right).