YEAR 9 MATHS - LINES OF ROTATIONAL SYMMETRY PLEASE HELP ME Here are nine shapes.
Two of these shapes have rotational symmetry of order 2 and no lines of symmetry.
Which two shapes are they?
(2 marks)

The answer would be A and E

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb