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How do you expand Double Brackets?

For this we will use the FOIL Method. This stands for Front, Outside, Inside, Last. This helps us to check that we have multipled everything. For example, lets use (x+1)(2x+3): Multiply the first terms: x 2x...
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Answered by Harry R. • Maths tutor
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(4x + 3)/(x + 1) + 2 = 8

(4x + 3)/(x + 1) + 2 = 8 Firstly minus the 2 from both sides (4x + 3)/(x + 1) = 6 Then multiply both sides by the denominator (x + 1) 4x + 3 = 6(x + 1) Expand the brackets. 4x + 3 = 6x + 6 Rearrange the equa...
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Answered by Jessica W. • Maths tutor
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Solve these pair of simultaneous questions: 3x+2y=17 4x-y=30

Let's solve for x first by substituting y in terms of x. 4x-y=30 y=4x-30 3x+2y=3x+2(4x-30)=3x+8x-60=11x-60 11x-60=17 11x=77 x=7 Now let's solve for y by substituting x for 7 3x +2y=17 3(7)+2y=17 21+2y=17 2y=...
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Answered by Jin-Ho Y. • Maths tutor
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Solve the simultaneous equations. x^2 + y^2 = 29. y-x = 3

The 2 equations are: 1) x 2 + y 2 = 29 2) y-x=3 In this kind of simultaneous equation, you cannot take it away from each other. Instead, you need to substitue. To do so, rearrange the 2nd equation to make x ...
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Answered by Pallave S. • Maths tutor
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How do I use the bow-tie circle theorem?

To explain this question, I would first draw a digram of a circle. Then I woud add a chord and create triangles with vrtices at the circumference of the circle which all have the chord as a base. Next, I wou...
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Answered by Ivana T. • Maths tutor
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