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Simplify and then solve by factorisation 3x(x+2)-7=2, to find x.

3x(x+2)-7=2 3x 2 +6x-7=2 3x 2 +6x-9=0 3(x 2 +2x-3)=0 [Divide by 3] (x 2 +2x-3)=0 (x+3)(x-1)=0 x= -3 x=1
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Answered by India M. • Maths tutor
7097 Views

How to form the perfect tense?

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/ell...
ES
Answered by Ellen S. • Spanish tutor
3878 Views

When is the perfect tense used?

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' translates t...
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Answered by Ellen S. • Spanish tutor
2819 Views

How do I structure a 16 mark answer?

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 answers t...
CS
Answered by Charlie S. • History tutor
78718 Views

Explain the pathway of a reflex, and name the neurones involved.

(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) is detected through a...
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Answered by Alexander B. • Biology tutor
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