Find the product of the expressions found in column A. Match the correct answer in column B. Write only the letter of your answer in the space provided.
Column A
____1. (x + 3) (x + 4)
____2. (4x + 7) (4x – 7)
____3. (x - 6) (x -6)
____4. (x + 2)³
____5. (2x + 9) (2x - 9)
Column B
a. 16x²–49
b. x² + 7x + 12
c. x² + 6x² + 12x + 8
d. x² - 12x + 36
e. 4x² - 81
Column A
____1. (x + 3) (x + 4)
____2. (4x + 7) (4x – 7)
____3. (x - 6) (x -6)
____4. (x + 2)³
____5. (2x + 9) (2x - 9)
Column B
a. 16x²–49
b. x² + 7x + 12
c. x² + 6x² + 12x + 8
d. x² - 12x + 36
e. 4x² - 81
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Answer:
1.x² + 7x + 12✅
2.16x²–49✅
3.x² - 12x + 36✅
4. x² + 6x² + 12x + 8✅
5.4x² - 81✅
Step-by-step explanation:
1. =x^2 +4x+3x+12
=x² + 7x + 12
2.=(4x)^2 −7^2
=4^2 x^2 −7^2
=16x^2−7^2
=16x²–49
3.=(x−6)^2
=x² - 12x + 36
4.Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3}(a+b) 3
=a 3+3a 2b+3ab 2+b 3 to expand \left(x+2\right)^{3}(x+2) 3.
Answer:
Column A.
1. B. x² + 7x + 12
2. A. 16x²- 49
3. D. x² - 12x + 36
4. C. x² + 6x² + 12x + 8
5. E. 4x² - 81