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Simplify fully (3x^2 -8x- 3)/(2x^2-6x)

When simplifying algebraic expressions, we should first factorise each term fully to find any common factors. First we should factorise the numerator where 3x 2 -8x-3 factorises to (3x+1)(x-3). Next, we shou...
PP
Answered by Paaras P. • Maths tutor
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x^2 +y^2 =25, y – 3x = 13 - Simultaneous Equations (June 2017)

x = -4.8x = -3
AU
Answered by Angelo U. • Maths tutor
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4x+2y=22, (y/2)+(x/4)=2.5

x=4,y=3
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Answered by Ieuan L. • Maths tutor
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2 chocolates weight 250g, there are 220 calories in 100g of chocolate. How many calories are in one chocolate?

275 Calories
IL
Answered by Ieuan L. • Maths tutor
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Solve these simultaneous equations: 3x-5=-4y and 2xy=-4

First start with 2xy=-4, rearrange to find in terms of x, x=-2/y. Substitute this into the other equation (3x-5=-4y), producing -6/y -5 =-4y.Times every term by -y resulting in 6+5y=4y 2 .Rearrange to 4y 2 -...
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Answered by Amelia S. • Maths tutor
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