What is the following product? (x square root 7 - 3 square root 8) (x square root 7 - 3 square root 8)
2 answers:
Answer:
7x^2 -6x√56 + 72
Step-by-step explanation:
(x√7 - 3√8)(x√7 - 3√8) ➡ (x√7 - 3√8)^
x^2 × 7 - 3x√56 - 3x√56 + 9×8 ➡ 7x^2 -6x√56 + 72
Answer:
7 x² - 6 x √56 +72
Step-by-step explanation:
Let's consider the following equation.
(x√7 - 3√8).(x√7 - 3√8)
This is equal to a squared binomial.
(x√7 - 3√8)²
This is equal to the square of the first term, minus the double of the product of the first by the second plus the square of the second term.
(x√7)² - 2 × x√7 × 3√8 + (3√8)²
7 x² - 6 x × √(7.8) + 9 . (√8)²
7 x² - 6 x √56 +72
You might be interested in
Answer:
10
Step-by-step explanation:
X = 10.7
Answer:
the answer is 23
Step-by-step explanation:
<span>3d - 6 = 5 --> add 6 to each side
3d = 11 --> divide by three on each side
</span>D = 3.66666666
Answer: B. 9/25
Work Shown:
x% = x/100
36% = 36/100
36% = (9*4)/(25*4)
36% = 9/25
Using your calculator, you should find that 9/25 = 0.36 which converts to 36%, so that helps confirm the answer.
Answer:
1. I am not sure about the first one. I tried everything and nothing I got from any of my work is looking right.
2. AB = 5
3. 8