Expand the brackets: (x-3)(x+4)
First Multiply x by (x +4) Next multiply -3 by(x+4) Then simplify the sum : x2+4x-3x-12 Hence the answer is : x2+x-12
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All answers ▸Expand the brackets and simplify: 7(2x+3y)-x(14-y)
Nadia has £5 to buy pencils and rulers. Pencils are 8p each. Rulers are 30p each. She says “I will buy 15 pencils. Then I will buy as many rulers as possible. With my change I will buy more pencils.” How many pencils and how many rulers does she buy?
Solve: 2((x)^2) + 7x + 3, for x
If 5x + 3y = 27 and 6x - 2y = 10, find x and y