3,998-(-7) Please i need help

Mathematics

2 answers:

jasenka [17]3 years ago

6 0

Answer:

4005

Step-by-step explanation:

Fynjy0 [20]3 years ago

4 0

Answer:

4005

Step-by-step explanation:

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Need help with this algebra question

Brums [2.3K]

factoring:-

f = 4x^2 + 19x - 5 = (4x - 1)(x + 5)

g = 4x^2 - x = x(4x - 1)

(4x - 1) is common, so:-

f/g (x) = (x + 5) / x which is the second choice.

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Boris wants to paint the ceiling of his restaurant. The ceiling is shaped in a square. Its side lengths are 52 feet. suppose eac

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Solve this equation for x. <br> 2/3(x+8)^2-66=0

yKpoI14uk [10]

Answer:

$\large\boxed{x=-8\pm3\sqrt{11}}$

Step-by-step explanation:

$\dfrac{2}{3}(x+8)^2-66=0\qquad\text{add 66 to both isdes}\\\\\dfrac{2}{3}(x+8)^2-66+66=0+66\\\\\dfrac{2}{3}(x+8)^2=66\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{2}{3\!\!\!\!\diagup_1}(x+8)^2=(3)(66)\\\\2(x+8)^2=198\qquad\text{divide both sides by 2}\\\\\dfrac{2\!\!\!\!\diagup^1(x+8)^2}{2\!\!\!\!\diagup_1}=\dfrac{198\!\!\!\!\!\diagup^{99}}{2\!\!\!\!\diagup_1}\\\\(x+8)^2=99\iff x+8=\pm\sqrt{99}\qquad\text{subtract 8 from both sides}$