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5x+3 = 18. What is the value of x?

Take away 3 from both sides to give you : 5x = 15Divide by 5 on both sides to give you : x = 3

Answered by Joseph B. • Maths tutor

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How would you factorise x^2 + 4x + 4

Solve x^2 = 4(x – 3)^2

Write 2x^(2) + 9x + 1 in the from a(x+m)^(2) + n, and hence solve 2x^(2) + 9x + 1= 0, leaving your answer in surd form.

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