(a+b)(2a+3b)(2x-y)

2 min read Jun 16, 2024
(a+b)(2a+3b)(2x-y)

Expanding the Expression (a+b)(2a+3b)(2x-y)

This article will guide you through expanding the expression (a+b)(2a+3b)(2x-y) step-by-step.

Step 1: Expanding the first two factors

We start by expanding the first two factors, (a+b)(2a+3b):

  • FOIL method:

    • First: a * 2a = 2a²
    • Outer: a * 3b = 3ab
    • Inner: b * 2a = 2ab
    • Last: b * 3b = 3b²
  • Combining like terms, we get: 2a² + 5ab + 3b²

Step 2: Expanding the result with the third factor

Now, we multiply the result from step 1 with the third factor, (2x-y):

  • (2a² + 5ab + 3b²) * (2x-y)

  • Distribute the first term:

    • 2a² * (2x-y) = 4a²x - 2a²y
  • Distribute the second term:

    • 5ab * (2x-y) = 10abx - 5aby
  • Distribute the third term:

    • 3b² * (2x-y) = 6b²x - 3b²y

Step 3: Combining all terms

Finally, we combine all the terms obtained in step 2:

4a²x - 2a²y + 10abx - 5aby + 6b²x - 3b²y

Final Result

The expanded form of (a+b)(2a+3b)(2x-y) is: 4a²x - 2a²y + 10abx - 5aby + 6b²x - 3b²y.

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