Math Problem Statement

(x + 5)(2x – 3)=

Solution

Let's expand the expression (x+5)(2x3)(x + 5)(2x - 3).

We can use the distributive property (also known as the FOIL method) to multiply the two binomials.

(x+5)(2x3)=x(2x3)+5(2x3)(x + 5)(2x - 3) = x(2x - 3) + 5(2x - 3)

Now, distribute each term:

x(2x3)=x2xx3=2x23xx(2x - 3) = x \cdot 2x - x \cdot 3 = 2x^2 - 3x 5(2x3)=52x53=10x155(2x - 3) = 5 \cdot 2x - 5 \cdot 3 = 10x - 15

Now, combine all the terms:

2x23x+10x152x^2 - 3x + 10x - 15

Combine the like terms 3x-3x and 10x10x:

2x2+7x152x^2 + 7x - 15

So, the expanded form of (x+5)(2x3)(x + 5)(2x - 3) is:

2x2+7x152x^2 + 7x - 15

Let me know if you'd like further details or have any questions!

Here are 5 related questions you might find interesting:

  1. How do you factor a quadratic expression like 2x2+7x152x^2 + 7x - 15?
  2. What is the FOIL method, and how is it used for multiplying binomials?
  3. How can you solve a quadratic equation like 2x2+7x15=02x^2 + 7x - 15 = 0?
  4. What happens if you have a negative sign inside a binomial, like (x5)(2x+3)(x - 5)(2x + 3)?
  5. How do you recognize if an expression is a perfect square trinomial?

Tip: Always remember to combine like terms when expanding polynomials!

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Math Problem Analysis

Mathematical Concepts

Algebra
Binomial Expansion
Distributive Property
FOIL Method

Formulas

(a + b)(c + d) = ac + ad + bc + bd

Theorems

Distributive Property
FOIL Method

Suitable Grade Level

Grades 7-9