Math Problem Statement

Multiplicera in i parentesen och förenkla: a) 3/4(8x + 2), b) 2/3(6 - 9x), c) 5/6(12x - 18).

Solution

The image contains three algebraic expressions where you are asked to multiply and simplify. Let’s go through each one step-by-step:

a) 34(8x+2)\frac{3}{4} (8x + 2)

Multiply 34\frac{3}{4} by both terms inside the parentheses: 34×8x=6x\frac{3}{4} \times 8x = 6x 34×2=64=1.5\frac{3}{4} \times 2 = \frac{6}{4} = 1.5 So, the simplified expression is: 6x+1.56x + 1.5

b) 23(69x)\frac{2}{3} (6 - 9x)

Multiply 23\frac{2}{3} by both terms inside the parentheses: 23×6=4\frac{2}{3} \times 6 = 4 23×(9x)=6x\frac{2}{3} \times (-9x) = -6x So, the simplified expression is: 46x4 - 6x

c) 56(12x18)\frac{5}{6} (12x - 18)

Multiply 56\frac{5}{6} by both terms inside the parentheses: 56×12x=10x\frac{5}{6} \times 12x = 10x 56×(18)=15\frac{5}{6} \times (-18) = -15 So, the simplified expression is: 10x1510x - 15

Let me know if you'd like further explanation on any part or more details!


Here are 5 related questions for practice:

  1. What happens if the parentheses in question (a) were 8x28x - 2 instead of 8x+28x + 2?
  2. How do you simplify expressions with more complicated fractions, such as 58(16x24)\frac{5}{8} (16x - 24)?
  3. How do you factor an expression like 6x+1.56x + 1.5?
  4. What is the inverse operation of multiplying by a fraction?
  5. Can these types of expressions be used in solving equations? How?

Tip: Always distribute the fraction to each term inside the parentheses separately, being mindful of signs!

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Math Problem Analysis

Mathematical Concepts

Algebra
Distribution
Simplification

Formulas

Distributive Property: a(b + c) = ab + ac

Theorems

Distributive Property

Suitable Grade Level

Grades 6-8