Question
Multiply: x2 - 8x + 8 by 6x2 -3x + 4
The correct answer is: 6x4 - 51x3 + 76x2 - 56x + 32
Answer:
- Multiplication of polynomials.
○ Follow three steps while multiplication of polynomials.
First, multiply each term in one polynomial by each term in the other polynomial using the distributive law.
Add the powers of the same variables using the exponent rule.
Then, simplify the resulting polynomial by adding or subtracting the like term
- Step by step explanation:
○ Given:
x2 - 8x + 8 and 6x2 -3x + 4
○ Step 1:
○ multiplication
(x2 - 8x + 8) (6x2 -3x + 4)
x2 (6x2 -3x + 4) - 8x (6x2 -3x + 4) + 8(6x2 -3x + 4)
(6x4-3x3 + 4x2) - (48x3 -24x2 + 32x) + (48x2 -24x + 32)
(6x4-3x3 + 4x2) - (48x3 -24x2 + 32x) + (48x2 -24x + 32)
○ Step 2:
○ Arrange like terms in decreasing order of power
6x4- 3x3 + 4x2 - 48x3 + 24x2 - 32x + 48x2 -24x + 32
(6x4) - (48x3 + 3x3) + (48x2 + 4x2+ 24x2) -(24x + 32x) + 32
(6x4) - (51x3) + (76x2) - (56x) + 32
6x4 - 51x3 + 76x2 - 56x + 32
- Final Answer:
6x4 - 51x3 + 76x2 - 56x + 32
○ Step 2:
○ Arrange like terms in decreasing order of power
Related Questions to study
Complete the factor pair for
Complete the factor pair for
Use the difference of squares to find the product 56 × 44.
This question can be easily solved by using the formula
(a + b)(a - b) = a2 - b2
Use the difference of squares to find the product 56 × 44.
This question can be easily solved by using the formula
(a + b)(a - b) = a2 - b2
Find the area of the green rectangle.
Find the area of the green rectangle.
Complete the factor pair for
Complete the factor pair for
(ℎ + 𝑘)(ℎ − 𝑘) =
(ℎ + 𝑘)(ℎ − 𝑘) =
Find the product. (2𝑥 − 4)(2𝑥 + 4)
This question can be easily solved by using the formula
(a + b)(a - b) = a2 - b2
Find the product. (2𝑥 − 4)(2𝑥 + 4)
This question can be easily solved by using the formula
(a + b)(a - b) = a2 - b2