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Kisachek [45]
3 years ago
8

Solve Fast Please!!!!!!!!!!!!!! ok thanks, Bye (2x−5)^2−.5x<(2x−1)(2x+1)−15

Mathematics
1 answer:
Andrews [41]3 years ago
8 0

Keep these rules in mind:

  1. (a + b)² = a² + 2ab + b²
  2. (a - b)² = a² - 2ab + b²
  3. (a + b)(a - b) = a² - b²

Firstly, solve the exponent and multiplication:

4x^2-20x+25-0.5x

Next, combine like terms:

4x^2-20.5x+25

Next, subtract 4x² on both sides:

-20.5x+25

Next, subtract 25 on both sides:

-20.5x

Lastly, divide both sides by -20.5. And since you are dividing by a <u>negative</u>, flip the inequality sign:

x>2

<u>Your answer is x > 2.</u>

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Find an equation for the line perpendicular to y=-1/2x+4 and goes through the point (-1,10)
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The slope of the perpendicular line will be 2. Remember, a perpendicular slope is the negative reciprocal.

So, we can make the equation y=2x+b. We need to find b, and put b in.

To find b, put in the numbers of y and x.

10=2(-1)+b

Solve for b:

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Now replace b in the original equation with 12 and that will be the answer:

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6 0
2 years ago
IF YOU SOLVE FIRST YOU GET BRAINLIEST
Nonamiya [84]

I solved 2/5(x − 2) = 4x. I don't know why you included those extra numbers.

<u>-2/9</u>

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