(3a - 2b)(2a + 3b)
$6000 the box has a square base of 20 cm x 20 cm and a height of 40 cm. Its all in the calculus b = side of base Cost = 6b2 + (96,000/b) Derivative of Cost = 12b - (96,000/b2) Solve for b ______________________________ I respectfully disagree with your answer. Try using the cube root of 16000. Or, if you prefer rounder numbers, try length = 25, width = 25, height = 25.6. Of course, this is a crude approximation, but you still end up with a total cost of $5715, so I saved you at least $285. If you used exact numbers, you'd end up with $5714 and some change. Matt
(3a - 2b)(2a + 3b)
Considering the minus sign between 5ab and 6b2 then we have the polynomial as 6a2 + 5ab - 6b2. The polynomial is a quadratic polynomial.Steps to factorize a quadratic polynomial:1 - Multiply first term by third term. 6a2 x (-6b2) = -36a2b22 - If possible break the second term into two terms such that they multiple to -36a2b2. If not then it is factorized by Sridharacharya's formula.5ab can be broken as 9ab + (-4ab).These two terms multiply to give -36a2b2.So we can write 6a2 + 5ab - 6b2 = 6a2 + 9ab + (-4ab) - 6b2.6a2 + 9ab - 4ab - 6b2 = 3a(2a + 3b) - 2b(2a + 3b) = (2a + 3b)(3a - 2b).So the factors are (2a + 3b) and (3a - 2b).
b2(b + 6)
6(a + b)(b - c)
-3b2(5b - 2)
3(2b2 - 5b - 2)
(-3b - 4)(-2b + 5)
6b^2-13bs-63s^2 is factorised to (2b-9s)(3b+7s)
a2-8a plus 12, if done correctly according to calculus, results in the number 2.
If a/b=sqrt(6), then a2=6b2 On the other hand, given integers ''a'' and ''b'', because the valuation (i.e., highest power of 2 dividing a number) of 6b2 is odd, while the valuation of a2 is even, they must be distinct integers. Contradiction.
They are 1, 2, 3, 4, 6, 9, 12, 18, 36,1a, 2a, 3a, 4a, 6a, 9a, 12a, 18a, 36a,1b, 2b, 3b, 4b, 6b, 9b, 12b, 18b, 36b,1a2, 2a2, 3a2, 4a2, 6a2, 9a2, 12a2, 18a2, 36a2,1ab, 2ab, 3ab, 4ab, 6ab, 9ab, 12ab, 18ab, 36ab,1b2, 2b2, 3b2, 4b2, 6b2, 9b2, 12b2, 18b2, 36b2.
The question is ambiguous because there is no sign shown before the final 6. Assume it is +6 since -6 would make factorisation very difficult. Thus the equation is 6b2 - 13b + 6 = 0 Then 6b2 - 4b - 9b + 6 = 0 or 2b(3b - 2) - 3(3b - 2) = 0 ie (3b - 2)(2b - 3) = 0 then 3b -2 = 0 or 2b - 3 = 0 so 3b =2 or 2b = 3 ie b = 2/3 or b = 3/2