Find each product. 4x2(3x3+2x2−$$5x+1)4x^2(3x^3$+2x^2-5x+1)$$

Ch. R - Review of Basic Concepts

Lial13th EditionCollege AlgebraISBN: 9780136881063Not the one you use?Change textbook

All textbooks

Lial 13th Edition

Ch. R - Review of Basic Concepts

Problem 33

Chapter 1, Problem 33

Find each product. $4 x^{2} (3 x^{3} + 2 x^{2} - 5 x + 1)$

Verified step by step guidance

Identify the expression to be multiplied: $4x^2(3x^3 + 2x^2 - 5x + 1)$.

Apply the distributive property by multiplying \$4x^2$ with each term inside the parentheses separately.

Multiply \$4x^2$ by the first term: $3x^3$. Use the rule for multiplying powers with the same base: $x^a \cdot x^b = x^{a+b}$. So, $4x^2 \cdot 3x^3 = 4 \cdot 3 \cdot x^{2+3} = 12x^5$.

Multiply \$4x^2$ by the second term: $2x^2$. Similarly, $4x^2 \cdot 2x^2 = 8x^{2+2} = 8x^4$.

Continue by multiplying \$4x^2$ by the third term $-5x$ and the fourth term $1$, then write the full expanded expression by combining all these products.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.

Video duration:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Polynomial Multiplication

Polynomial multiplication involves distributing each term of one polynomial to every term of the other. This process requires applying the distributive property to combine like terms and simplify the expression.

Distributive Property

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by each term inside a parenthesis, which is essential when multiplying a monomial by a polynomial.

Combining Like Terms

After multiplying, terms with the same variable raised to the same power are combined by adding or subtracting their coefficients. This step simplifies the polynomial to its standard form.

Recommended video:

5:22

Combinations

Related Practice

Textbook Question

If the expression is in exponential form, write it in radical form and evaluate if possible. If it is in radical form, write it in exponential form. Assume all variables represent positive real numbers. $-m $\sqrt{2y^5}$$