Question
Write the product in standard form. (𝑥 − 4)(𝑥 + 4)
The correct answer is: 16
(𝑥 − 4)(𝑥 + 4) = 𝑥(𝑥 + 4) − 4(𝑥 + 4)
= 𝑥(𝑥) + 𝑥(4) - 4(𝑥) - 4(4)
= 𝑥2 + 4𝑥 - 4𝑥 - 16
= 𝑥2 - 16
Final Answer:
Hence, the simplified form of (𝑥 − 4)(𝑥 + 4) is 𝑥2 - 16
This question can be easily solved by using the formula
(a + b)(a - b) = a2 - b2
Related Questions to study
The area of the rectangle is 𝑥2 + 11𝑥 + 28. Its length is x + __ and its width is __+ 4. Find the missing terms in the length and the width.
The area of the rectangle is 𝑥2 + 11𝑥 + 28. Its length is x + __ and its width is __+ 4. Find the missing terms in the length and the width.
Simplify: 12 - [13a - 4(5a -7) - 8 {2a -(20a - 3a)}]
Simplify: 12 - [13a - 4(5a -7) - 8 {2a -(20a - 3a)}]
Write the product in standard form. (2𝑥 + 5)2
This question can be easily solved by using the formula
(a + b)2 = a2 + 2ab + b2
Write the product in standard form. (2𝑥 + 5)2
This question can be easily solved by using the formula
(a + b)2 = a2 + 2ab + b2
Write the product in standard form. (𝑥 − 7)2
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2
Write the product in standard form. (𝑥 − 7)2
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2
(𝑥 + 9)(𝑥 + 9) =
This question can be easily solved by using the formula
(a + b)2 = a2 + 2ab + b2
(𝑥 + 9)(𝑥 + 9) =
This question can be easily solved by using the formula
(a + b)2 = a2 + 2ab + b2
Find the area of the rectangle.
Find the area of the rectangle.
The table below shows the distance a train traveled over time. How can you determine the equation that represents this relationships.
The table below shows the distance a train traveled over time. How can you determine the equation that represents this relationships.
Simplify: 4x2(7x -5) -6x2(2 -4x)+ 18x3
Simplify: 4x2(7x -5) -6x2(2 -4x)+ 18x3
(𝑎 + (−3))2 =
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2
(𝑎 + (−3))2 =
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2
Use the table method to multiply a binomial with a trinomial.
(−3𝑥2 + 1) (2𝑥2 + 3𝑥 − 4)
Use the table method to multiply a binomial with a trinomial.
(−3𝑥2 + 1) (2𝑥2 + 3𝑥 − 4)
(𝑥 − 2)2 =
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2
(𝑥 − 2)2 =
This question can be easily solved by using the formula
(a - b)2 = a2 - 2ab + b2