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3x(x+2)-7=2 3x²+6x-7=2 3x²+6x-9=0 3(x²+2x-3)=0 [Divide by 3] (x²+2x-3)=0 (x+3)(x-1)=0 x= -3 x=1

The perfect tense is formed with the present tense form of haber plus a past participle. The present tense forms of haber are: (yo) he, (tú) has, (él/ella) ha, (nosotros) hemos, (vosotros) habéis, (ellos/...

The perfect tense is used to refer to actions that have happened in the past which have recently been completed. It translates directly into the English perfect tense. For example, 'has comido' t...

This is almost an essay-style response to a question, but that's not something to be scared about. Being prepared to write an essay response will help you structure your argument in a way that best answer...

(Background) A reflex is a sudden, unconscious and involuntary response to a stimuli. It occurs through 3 different types of neurones or nerve cells: 1) The stimulus (heat, pain, light) i...