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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

7.265

X^2 - (4*3) + 8 = 0
X^2 -4 = 0
X^2 = 4
X = 2

There's a lot of information to take on in this question so it's firstly important to isolate the facts: ...