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3 years ago

What is the factorization of 2x2 + 5x + 3?

Mathematics

2 answers:

Vilka [71]3 years ago

8 0

Answer:

(2x+3)(x + 1)

Step-by-step explanation:\

Since the first term has a coefficient, multiply 3 by 2 which results in 6.

Now to break the equation into groups, we have to find two integers that have a product of 6 and a sum of 5. The two integers are 2 and 3.

2x² + 5x + 3

= (2x² + 2x) + (3x + 3)

Factor out the GCF.

2x (x + 1) + 3(x + 1)

Divide the whole equation by x+1.

Now you're left with (x + 1) and (2x+3)

I am Lyosha [343]3 years ago

5 0

The answer should be A. Hope this helps

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Studentka2010 [4]

Answer:

12.4 ft

Step-by-step explanation:

Everything is done right so far.

Now to calculate the height of the tree, 12tan46, put the equation into a calculator.

Either a graphing calculator (make sure it is in degrees, not radians),

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2 years ago

Solve x;<br> x- 2 (divided by) -8 = 0<br><br> --Please Help! Due in for tomorrow! Xx

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3 years ago

Help please, tank u :)

elena-s [515]

Answer:

16 ft

Step-by-step explanation:

Let the width of the rectangle be x ft

Therefore, length = (x + 2) ft

Area of the rectangle = 15 square ft

$x(x + 2) = 15 \\ \\ {x}^{2} + 2x = 15 \\ \\ {x}^{2} + 2x - 15 = 0 \\ \\ {x}^{2} + 5x - 3x - 15 = 0 \\ \\ x(x + 5) - 3(x + 5) = 0 \\ \\ (x + 5)(x - 3) = 0 \\ \\ x + 5 = 0 \: or \: \: x - 3 = 0 \\ \\ x = - 5 \: \: or \: \: x = 3 \\ \\ \because \: x \: can \: not \: be \: - ve \\ \\ \therefore \: x = 3 \\ \\ \implies \: x + 2 = 3 + 2 = 5 \\ \\ perimeter \: of \: rectngle \\ = 2(5 + 3) \\ = 2 \times 5 \\ = 16 \: ft$

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3 years ago

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Answer: look at the picture i attached!

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