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Factorise and solve (x^2) - 8x + 15 = 0.

Factorise means to put into brackets and solve means to find values of x that make the equation true.We need to find two numbers that multiply to make 15 and add together to make -8. They both need to be ...

Answered by Libby C. • Maths tutor

2450 Views

Factorise the quadratic equation: 3x^2+x-2

3x^2+3x-2x-2
3x(x+1)-2(x+1)
(3x-2)(x+1)

Answered by Peter A. • Maths tutor

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Why do you put the quadratic equation equal to zero when you want to find it’s roots?

It is better to think of it as substituting one equation into another, rather than thinking of it as ‘making it equal to zero’. Say you have a quadratic equation y = x^2 - x - 6 and you want to find it’s ...

Answered by Nadiyah G. • Maths tutor

1987 Views

How do I conjugate the present tense form of an irregular verb such as 'hacer'?

HACER Unlike regular verbs in the present tense, 'hacer' has an irregular stem in the first person singular (yo) form.
The conjugation in the present tense is as follows: YO - hago, TÚ - haces, ÉL/E...

Answered by Millie C. • Spanish tutor

1381 Views

The function f is defined by f(x)= 2/(x-3) + x - 6 . Determine the coordinates of the points where the graph of f intersects the coordinate axes.

If you look at a set of x,y-axes, and imagine any curve going through both axes (you don't have to be able to imagine what this graph of f looks like just yet). Now imagine the part of the graph that cros...

Answered by Natalie T. • Maths tutor

3897 Views