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Multiplying Expressions with Indices

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Multiplying Expressions with Indices

Simplify each expression. When multiplying powers with the same base, add their indices. Show working where space is provided.

Foundation Skills

Multiply powers with the same base and simplify numerical coefficients.

1.Simplify: r³ × r⁵
2.Simplify: t⁶ × t²
3.Simplify: k × k⁷
4.Choose the simplified form of 4m² × 3m⁵.
  • 7m⁷
  • 12m⁷
  • 12m¹⁰
  • 12m³
5.Simplify: 6c³ × 2c⁴
6.Simplify: 7n² × 5n

Developing Skills

Multiply terms containing more than one variable, then expand brackets.

7.Simplify: 2uv³ × 5u⁴v²
8.Simplify: 3ab² × 4a³b⁵
9.Expand and simplify: 3x(2x² + 5x)
10.Expand and simplify: 2y²(4y³ − 3y)
11.Select every product that simplifies to 15a⁵b⁴.
  • 3a²b × 5a³b³
  • 5a⁴b × 3ab³
  • 15a²b² × a³b²
  • 5a³b⁴ × 3a²

Extension Challenges

Apply index laws to longer products and use them to solve problems.

12.Simplify: (3p²q)² × 2p⁴q³
13.Simplify: 2a³b × 5ab² × 3a²
14.A rectangle has area 10x⁴y³ square units and length 2xy. Find its width as an expression in simplest form.
15.Given q⁴ × qˣ = q¹¹, find x. State the index law used.

3 printable pages

  • Multiplying Expressions with Indices, page 1 of 3: Foundation Skills

    Page 1

  • Multiplying Expressions with Indices, page 2 of 3: Developing Skills, Extension Challenges

    Page 2

  • Multiplying Expressions with Indices, page 3 of 3: 14. A rectangle has area 10x⁴y³ square units and length 2xy. Find its width as an…

    Page 3

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