Answer:(a² - 4b² - 9)(a² - 4b² + 9)
(a^4 - 8a²b² + 16b^4) - 81
= [(a²)² - 2.4a²b² + (4b²)²] - 9²
= (a² - 4b²)² - 9²
= (a² - 4b² - 9)(a² - 4b² + 9)
Step-by-step explanation:
Answer:
1.true
2.false
3.false
4.true
5.true
6.false
Step-by-step explanation:
just graph it and look at it
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Answer:
$3600.
Step-by-step explanation:
If the wife received $6000 which is a quarter of the money, solve for the total amount of the fortune:
1/4x = 6000
Multiply both sides by 4:
x = $24000
We can begin by subtracting the wife's amount from the total:
24000 - 6000 = $18000
He has 3 sons and 4 daughters. Let 'x' represent the amount the daughters received, and '2x' the amount the sons received.
18000 = 3(2x) + 4(x)
Distribute and combine the terms:
18000 = 6x + 4x
18000 = 10x
Divide both sides by 10:
18000/10 = 10x/10
x = $1800. This is the amount that each daughter receives. Since the sons receive '2x':
2(1800) = $3600.
