Simplify √90+√360+5√10

The object of surds is to look for square numbers in each term and take the square root of them. √90=√9√10=3√10 √360=√36√10=6√10 Therefore adding all the terms together 3√10+6√10+5√10=14√10

LM

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations 6x - 27 = 15 and 4x + 3y = -3.


There are 16 hockey teams in a league. Each team played two matches against each of the other teams. Work out the total number of matches played.


Prove algebraically that the straight line with equation x - 2y = 10 is a tangent to the circle with equation x^2 + y^2= 20


Ms Henderson has two jars of sweets. The jars contain the same number of sweets in total. 25% of the sweets in Jar A are mint. Two fifths of the sweets in Jar B are mint. There are 10 mint sweets in Jar A, how many mint sweets are there in Jar B?