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(x+2)(x-1)=0 x+2=0x= -2x-1=0x=1

1. Ionic bonding - occurs between a metal an a none metal. Electrons are transferred between two atoms to form ions - atoms with either a positive or negative charge. Ionic bonding occurs because of th...

Firstly, demonstrate with an example: Solve: 3x + y = -9 and x² + 2x - 3 = yRearrange the first equation to get "y" by itself by moving parts of the equation to the other side e.g. y ...

Pythagoras theorem can be used to calculate the length x of the triangle. The length of the hypotenuse is equal to the square root of a² + b². When given length a and b, you are able...

The preterite tense in Spanish is used to talk about an action that has been completed. In order to conjugate a regular verb into the preterite tense we firstly need to find the stem of the verb, which we...