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(1) 4x-y=3(2) 6x+2y=1Eliminate y; (1) X 2 => (3) 8x-2y=6 Add (2) to (3) 8x - 2y = 6 +(6x + 2y) = 114x = 7x=1/2 If x=1/2 then,2-y=3 y= -1

5(1-2m)

Step 1 Using the crab methodLooking at the first bracket:Multiply x by x to give x²Then multiply x by 6 to give 6xThen move onto 3 Multiply 3 by x to give 3xThen multiply 3 by 6 to give 18 Add ...

(x²+3x+2)(x+3) = x³+3x²+3x²+9x+2x+6 = x³+6x²+9x+2x

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