Factorise 2e – 4f + ex -2fx
2(e-2f) + x(e-2f) = (2+x)(e-2f)
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Consider the right angled triangle with vertices labelled a, b, c. Angle A = 60°, Angle B = 90°, length ab=4cm, length ac=xcm. If cos60° = 0.5, work out the value of x.
Factorise and solve: x^2 - 8x = -15
a) A line passes through (0,9) and (3,12) write down the equation of this line . b) A line perpendicular to the line in part a passes through the point (3,14) write the equation of this line.)