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

Whenever faced with a quadratic equation in the form of AX^2 + BX + C = 0, the first thing you do is factorise it, which will look something like this: (X )(X ) = 0.You can see from this that when you mul...

ZN
Answered by Zarmala N. Maths tutor
3486 Views

Which of the basic life processes is described here? The ability of multicellular organisms to regulate their internal environment so that it stays optimum for cellular survival.

Homeostasis

AM
Answered by Alice M. Biology tutor
3050 Views

Expand (x-5)(2x-3)

(x-5)(2x-3)= 2x-3x-10x+15

= 2x2 -13x + 15

SS
Answered by Sharone S. Maths tutor
5164 Views

You are told that the y is proportional to x^2 and that when y=75, x=5. Find a formula for x in terms of y.

If we know that y is proportional to xthen we using the given values we can write 75= 5--> 75=25, however this is obviously not true but all that remains is to multiply the 5<...

JP
Answered by Jenieka P. Maths tutor
3314 Views

Solve 9x - 3 = 4x + 17

The objective of the question is to find an answer to x = ?, where ? is a number.

Start by 'moving' all the x's to one side of the equals sign and all the numbers to the other. This can be done by ...

MC
Answered by Michael C. Maths tutor
5408 Views

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