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I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it cheaper?

Answered by William H.

Factorise x^2 -7x+10, and hence solve x^2-7x+10=0

Answered by Gareth T.

LOWER TIER a) Multiply the following out: (x+3)(x-4). b) Factorise the following equation into two bracket form: x^2+7x+12

Answered by Jonathan V.

What are the different methods of solving quadratic equations?

Answered by Lois M.