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3 years ago

What is the solutions of the equation (4 x + 3)^2=18

Mathematics

1 answer:

tekilochka [14]3 years ago

4 0

Answer:

(4x+3)^2 = 18

16x+9=18

16x=9

Step-by-step explanation:

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9. What’s the answer to this question!

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Answer:

the answer is b

Step-by-step explanation:

first you simplify the numbers by 25 and end up with x - 5 over x^2 and then you simplify by x and you get -5 over x

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2 years ago

Ax + By = C represent the lineAn egg is dropped straight down from a diving board whose end is 7 ft from the edge of the pool, w

Katen [24]

Answer:

A = 1, B = 0, C = 7

Step-by-step explanation:

The egg follows the path x = 7, so the equation is ...

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2 years ago

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Simplify (3x2-5x-6) - (5x2+4x+4)

Lisa [10]

Answer:

=−2x^2−9x−10

Step-by-step explanation:

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2 years ago

I need help I don’t understand it

tiny-mole [99]

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2 years ago

Please answer correctly !!!!!!!!! Will<br> Mark brainliest !!!!!!!!!!!!!

il63 [147K]

Answer:

$x=-\frac{-20+\sqrt{-20w+3600}}{10},\:x=-\frac{-20-\sqrt{-20w+3600}}{10}$

Step-by-step explanation:

$w=-5\left(x-8\right)\left(x+4\right)\\\mathrm{Expand\:}-5\left(x-8\right)\left(x+4\right):\quad -5x^2+20x+160\\w=-5x^2+20x+160\\Switch\:sides\\-5x^2+20x+160=w\\\mathrm{Subtract\:}w\mathrm{\:from\:both\:sides}\\-5x^2+20x+160-w=w-w\\Simplify\\-5x^2+20x+160-w=0\\Solve\:with\:the\:quadratic\:formula\\\mathrm{Quadratic\:Equation\:Formula:}\\\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$\mathrm{For\:}\quad a=-5,\:b=20,\:c=160-w:\quad x_{1,\:2}=\frac{-20\pm \sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}\\x=\frac{-20+\sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}:\quad -\frac{-20+\sqrt{-20w+3600}}{10}\\x=\frac{-20-\sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}:\quad -\frac{-20-\sqrt{-20w+3600}}{10}\\The\:solutions\:to\:the\:quadratic\:equation\:are\\x=-\frac{-20+\sqrt{-20w+3600}}{10},\:x=-\frac{-20-\sqrt{-20w+3600}}{10}$

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2 years ago