Topic Details (Notes format)

How to Perform Synthetic Division

Subject: Mathematics

Book: Maths Mastery

Synthetic division streamlines dividing polynomials by linear factors of the form (x – c). For instance, to divide x³–2x²+4x–8 by (x–2), set up synthetic placeholders using 2 as the “root” and coefficients 1, –2, 4, –8. Bring down the leading coefficient and multiply it by 2 each time, adding to the next column. The final row’s last number is the remainder; preceding numbers are new coefficients. This method cuts out the repeated steps of polynomial long division. Widely used in factorization and root finding, synthetic division is a quick and powerful algebraic technique for linear divisors.

Practice Questions

The ratio of two numbers is 3:5, and their sum is 64. What are the numbers?

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If 2a + b = 10 and a - b = 4, what is the value of a?

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If a:b = 2:3 and b:c = 4:5, what is a:c?

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If a:b = 3:4 and b:c = 5:6, what is a:c?

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What is the value of log₃(27)?

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If the probability of an event is 1/4, what is the probability of its complement?

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What is the LCM of 15 and 20?

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If x^2 - 6x + 9 = 0, what is the value of x?

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If the perimeter of a square is 36 cm, what is the length of its diagonal?

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What is the area of an equilateral triangle with side length 10 cm?

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