2 years ago

Expand and simplify (2x-3)(3x+4)

Mathematics

1 answer:

mojhsa [17]2 years ago

6 0

Answer:

(2x-3)(3x+4)

2x(3x+4)-3(3x+4)

6x^2+8x-9x-12

6x^2-x-12

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Solve5(2x-3) = 3(x+4)

balu736 [363]

$5(2x-3)=3(x+4) \\
10x-15=3x+12 \\
10x-3x=12+15 \\
7x=27 \\
x=\frac{27}{7}=3 \frac{6}{7}$

3 0

2 years ago

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Select the correct answer.

eduard

If 30 is half price, then what is full price?

You can set up this problem like this:

30 = x/2

30 = (1/2)x

where x is the full price.

To solve, simply multiply each half by 2:

2(30) = 2((1/2)x)

4 0

1 year ago

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HELP HELP HELP!!!!!!!

erma4kov [3.2K]

Answer:

b = 77

Step-by-step explanation:

a² + b² = c²

36² + b² = 85²

1296 + b² = 7225

b² = 7225 - 1296

b² = 5929

$\sqrt{b^2} =\sqrt{5929}$

b = 77

3 0

2 years ago

Y=-3x + 4

serg [7]

Use substitution
Set them equal to each other
-3x + 4 = 3x - 2
Solve the equation
4 = 6x - 2
6x = 6, x = 1
Plug in 1 for any equation to find y
Y = -3(1) + 4
Y = -3 + 4, y = 1
Solution: x = 1, y = 1

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3 years ago

Determine the positive square root of the number given. If the number is not a perfect square, determine the integer to which th

miss Akunina [59]

Answer:

The square root of 169 is 13.

Step-by-step explanation:

4 0

2 years ago