3 years ago

Q: Solve by the Extraction of Roots method: - -5x²=-50

Mathematics

1 answer:

My name is Ann [436]3 years ago

7 0

Answer:

$x = \sqrt{10}$

Step-by-step explanation:

$- 5 {x}^{2} = - 50 \\ {x}^{2} = \frac{ - 50}{ - 5} \\ {x}^{2} = 10 \\ x = \sqrt{10}$

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(x+1)^2+(x-1)^2-2x(x+2)=0

antoniya [11.8K]

Answer:

x = 1/2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

$(x+1)^2+(x-1)^2-2x(x+2)=0$
$x^2 + 2x + 1 + x^2 - 2x + 1 -2x^2 -4x = 0$
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2 years ago

Anna can buy 3 sweatshirts for a total of $45.How much would it cost if she were to buy 5 sweatshirts at same price?

Lelechka [254]

Answer: Anna could buy 5 sweatshirts for $75.

Step-by-step explanation:

lets figure out the price of one sweatshirt.

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Andrew [12]

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Step-by-step explanation:

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