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Solve the quadratic equation x^2 + 7x + 6 = 0

To solve a quadratic equation of the form Ax² + Bx + C = 0, where, in this example, A=1, B=7 and C=6, we need to factorise the left-hand side of the equation. To do this we first need to write ...

Answered by Caitlin J. • Maths tutor

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Solve the inequality x^2+2x-8<0

-4<x<2Work out using whiteboard

Answered by Abdullah S. • Maths tutor

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Solve the two simultaneous equations y+5x=30 and 6y=-x+64

The easiest way to solve these equations is by substitution. Rearrange the 6y=-x+64 equation into the form of x=64-6y. Replace x in the other equation with x=64-6y to produce y+5(64-6y)=30. Multiply out t...

Answered by Harriet W. • Maths tutor

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A linear sequence starts, a + 2b, a + 6b, a + 10b …….. …….. The 2nd term has value 8. The 5th term has value 44. Work out the values of a and b

As it states that it is a "linear" sequence. You can identify the pattern and recognise that the 4th and 5th terms will be, a+14b and a+18b respectively.As the 2nd term has the value 8. This mea...

Answered by Haris A. • Maths tutor

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