Write sqrt(75) in simplified surd form.

First you want to find a square number that is a factor of 75. In this case it is 25, as 25 x 3 = 75 . With this information you can expand the surd into:sqrt(25) x sqrt(3)
As 5^2 = 25, this can become:5 x sqrt(3) or 5sqrt(3)

KG

Related Maths GCSE answers

All answers ▸

Solve the equation (3x**2 + 8x + 4) = 0


Fully simplify this equation; 3x^3 - x(3x+36) = 0


The cost of a ticket increases by 10% to £19.25. What is the original cost?


Write 3a - a x 4a + 2a in its simplest form.