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Differentiate the following: 7x^2 - 3x^3 + 5 + 27x

To solve this, we mutiply the powers by their respective co-efficients, then we lower the power by 1. If there isn't any X value following the number, we ignore the number entirely because it is a constant. ...
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Answered by Oliver S. • Maths tutor
3488 Views

Factorise and solve 4(x)^2-2x=0

2x(2x-1)=0 x=0 and x=1/2
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Answered by Alexander A. • Maths tutor
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How do you find the missing angle of a Triangle?

180-99-22= 68 180-68= 112 112/2=56
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Answered by Jay G. • Maths tutor
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Solve 7x - 14 = 4x + 7

Like all equations, you're going to start off by getting all the x's on the same side of the = side and all the rest on the other side. So we start off with 7x-14=4x+7. Moving the x's to one side means that ...
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Answered by Daan F. • Maths tutor
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Find the value of 4a + 3b when a=2 and b=5

This question is asking us to place a number in the place of their corresponding letter, so as the letter a is attached to the number two, whenever we see the letter a in the equation we would replace it wit...
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Answered by Roisin M. • Maths tutor
15772 Views