Solve the expression using BODMAS rule: 3x(x−2)+x(x2×2x)−12x
A
2x5−3x2−18x
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B
2x5+3x2−18x
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C
2x5+3x2+18x
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D
−2x5−3x2−18x
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Solution
The correct option is B2x5+3x2−18x 3x(x−2)+x(x2×2x)−12x We need to follow BODMAS rule. => Brackets (parts of a calculation inside brackets always come first). => Orders (numbers involving powers or square roots). => Division. => Multiplication. => Addition. => Subtraction. =3x(x−2)+x(x2×2x)−12x =3x2−6x+x3×2x2−12x =3x2−6x+2x5−12x =2x5+3x2−18x