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velikii [3]
3 years ago
10

Expand and simplify (3x+5)(4x-1)

Mathematics
1 answer:
Whitepunk [10]3 years ago
5 0
Use FOIL and simply, First times First, Outside times Outside, Inside times Inside, Last times Last.

(3x+5)(4x-1)
3x * 4x = 12x²
3x * -1 = -3x
5 * 4x = 20x
5 * -1 = -5

12x² - 3x + 20x - 5

Now simplify by adding -3x to 20x and get:

12x² + 17x - 5
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Give the values of a, b, and c needed to write the equation's general form.<br>1/4x^2+5=0
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Let's solve your equation step-by-step.

\frac{1}{4} x^2+5=0

For this equation: a=0.25, b=0, c=5

0.25x^2 + 0x + 5 = 0

Step 1: Use quadratic formula with a=0.25, b=0, c=5.

x = \frac{-b ± \sqrt{b^2 - 4ac} }{2a}

x = \frac{-(0) ± \sqrt{(0)^2 -4 (0.25) (5)  } }{2(0.25)}

x = \frac{0 ± \sqrt{-5} }{0.5}

Answer : No Real Solutions.

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If this helped you, could you maybe give brainliest..?

Also Have a great day/night!

❀*May*❀

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3 years ago
The area of the triangle below is 6.12 square feet. What is the length of the base?
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Step-by-step explanation:

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1 year ago
397 students went on a field trip. Eight
lbvjy [14]

Answer:48

Step-by-step explanation:

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8y + 29= 397

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8y= 368

Divide both side by 8

8y/8=368/8

y = 46

Number of students in each bus is 46

8 0
3 years ago
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