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Write (x + 1)(x + 2)(x + 3) in the form ax³ + bx² + cx + d

Step 1: Multiply the first 2 brackets(x + 1)(x + 2) =x 2 + x + 2x + 2 =x 2 + 3x + 2 Step 2: Multiply the result with the third bracket(x 2 + 3x + 2)(x+3)x 3 + 3x 2 + 2x + 3x 2 + 9x + 6x 3 + 6x 2 + 11x + 6
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Answered by Anjum C. • Maths tutor
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Express (5x + 3)/((2x - 3)(x + 2)) in partial fractions.

To start, we understand that partial fractions are used so that we can more easily integrate a function. When you add two fractions together, you consider both denominators and find the LCM ; partial fractio...
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Answered by Isabelle J. • Maths tutor
7652 Views

Draw the graph of, y = x^2 – 2x – 4

1)First, let's create a table of values for x and y. For this example, let's pick values of x ranging from -2 to +4.2) We will then input our values of x into the equation, and get a corresponding value of y...
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Answered by Adam D. • Maths tutor
6999 Views

Which of the following is the most likely weight of a bag of flour? A 2 g B 2 litres C 2000 kg D 200 mm E 2 kg

The important thing in this sentence is weight. Weight is measured in grams and kilograms. Where 1000 grams is equivalent to 1 kilogram. Therefore we can eliminate B 2 litres , D 200 mm. The other options al...
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Answered by Daniel H. • Maths tutor
9289 Views

Expand (x+3)(x+4)

When we come across questions like this, we expand by multiplying everything in the first bracket by everything in the second bracket. An easier way of doing this is rewriting the question like: x(3x+4) + 3(...
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Answered by Greg C. • Maths tutor
15979 Views