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12y^2-2y-28y+32y(6y-1)-3(6y-1)(2y-3)(6y-1)

£5 = 500 p1 Pencil = 8p1 ruler= 30pIf she is buying 15 Pencil , it will be= 8 *15= 120p, 380 p remains ( 500p-120p= 380p) 360p / 30 = 12 rulers this will give you a chang...

x² - x - 12 = 0Factorise to get (x-4)(x+3)=0This gives (x-4)=0 or (x+3)=0So x=4 or x=-3

log₃(81) = 4 , log₂(32) = 59/log₂(x) = log₂(x)9 = (log₂(x))²3 = log₂(x) , -3 = log₂(x)x = 8 , x = 1/81 mark per line...