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Solve x^2 -4x=12

1:Firstly, put all the terms on the Left Hand Side, leaving only 0 on the right hand side2: Factorise the equation a) think about what multiples can be used to calculate -12 1*-12=-12 and -112=-12 2

EM
Answered by Elisabeth M. Maths tutor
2600 Views

Mitosis is the process of cell division, it occurs in humans and in plants. Compare and contrast the process of mitosis in human cells and in plant cells (5 marks)

(1) shape- in animal cells round before division, plant cells maintain shape throughout. (1) centrioles- present in animal cell mitosis, form the spindle fibre AND Absent in plant cells, spindle fibre for...

AL
Answered by Amelia L. Biology tutor
9084 Views

How should I structure a paragraph in an essay?

I would advise to use, what is called a PEEL method. point (or thesis) of your paragraph, evidence, elaboration, link. This means the following. In the beginning, make a claim that is one of the arguments...

ZG
2074 Views

A football pitch has a length of the xm. Its width is 25m shorter than the length. The area of the pitch is 2200m2. Show that x2 - 25x - 2200 =0 and work out the length of the football pitch.

Draw rectangle with length x and width (x - 25)show that area = length * width = x(x -25) = x2 - 25xx2 - 25x = 2200x2 - 25x -2200 = 0This cannot be factorised therefore must use quadratic equation: x = [-...

SO
Answered by Sophie O. Maths tutor
3082 Views

What is the difference between rationalism and empiricism?

Rationalism claims, that the information we gain is independent from our external experience (i.e. the senses). they use deduction as a scientific method. Deduction means, that we form a complex ideas by ...

ZG
Answered by Zuzana G. Philosophy tutor
2156 Views

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