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How to solve a simultaneous equation?

In simultaneous equations, at this level, you are often given two equations both containing an x and a y. For example:Equation1: y + 2x = 3Equation2: 4y + 2x = 8.The first step in approaching this is to t...

Answered by Sophie B. • Maths tutor

3410 Views

Express x^2-4x+9 in the form (x-p)^2+q where p and q are integers

The first step would be to expand the second equation:(x-p)^2+qx^2-px-px+p^2+q

this simplifies to x^2-2px+p^2+q

After this you examine the two equations and identify their similariti...

Answered by Mark N. • Maths tutor

13192 Views

What is the perfect tense and how do I form it?

When you want to say 'I have done something' in Spanish, the perfect tense is used. It is formed using the correct conjugation of the verb 'haber' (known as the auxiliary verb

Answered by Mary B. • Spanish tutor

1935 Views

Given that y = 2^x, express 4^x in terms of y.

4^x = (2*2)^x =2^x * 2^x = y^2

Answered by Benjamin M. • Maths tutor

12720 Views

Analiza la presentación del tema de la maternidad, o lo que significa ser madre, en la novela entera. Justifica tu respuesta con referencias detalladas.

I will not answer completely this question as it is an essay question but I will explain the key points of what my answer would be:En el texto 'Como agua para chocolate' de Laura Esquivel, se analizan tre...

Answered by Alejandra T. • Spanish tutor

3702 Views