10a Maths

expansion

100

(x+2)(x-2)=

x²-4

200

2(x-3)

2x-6

300

2(x-3)+3(x+4)=

5x-6

factorisation

100

x²-x-6

(x-3)(x+2)

200

12x+6

3(x+2+3x)

Pythagoras

100

what is the formula for Pythagoras ?

when C =hypotenuse and A and B = the other two sides

a²+b²=c²

200

if a triangle has two sides that are 3cm and 4cm how long is the hypotenuse?

5cm

trigonometry

100

if a right angled triangle's hypotenuse is 14cm long and adjacent is 13cm long what is the angle to 2 decimal places

21.79

200

if the sides of a triangle are 4 and the square root of 33 what is the length of the hypotenuse

7

random maths

100

what is the square root of 64?

8

200

what is the square root of 169

13