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Semenov [28]
3 years ago
13

I need help factoring this trinomeal: 2x squared + 3x + 1

Mathematics
2 answers:
dusya [7]3 years ago
6 0
Let's start with what we know:

2 x^{2}+3x+1
And we are trying to put it into this form:

(? +/-?)(? +/- ?)

Here is what it would look like:

(2x + 1)(x + 1)

You can check you work by using the FOIL method (first, outer, inner, last)


Margarita [4]3 years ago
6 0
2x² + 3x + 1
2x² + 2x + x + 1
2x(x) + 2x(1) + 1(x) + 1(1)
2x(x + 1) + 1(x + 1)
(2x + 1)(x + 1)
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Write 50,679 in expanded form
Norma-Jean [14]

Answer:50,000+600+70+9

Step-by-step explanation:

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6 0
3 years ago
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7nadin3 [17]

Yo sup??

by Pythagoras theorem we can say

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3 years ago
Help!! slove for x, 13x + 47 = 151
storchak [24]

Answer:

Step-by-step explanation:

13x + 47 = 151

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8 0
3 years ago
Please help me. Noura is redecorating her house. She needs to work out the area of the wall around her triangular window in orde
Vinvika [58]

Answer:

a. 277.3 m²

b. $307.86

Step-by-step explanation:

a. Area of the wall to be painted = area of rectangle - area of triangle

= L × W + ½×a×b×sin θ

L = 17 m

W = 14 m

a = 8.7 m

b = 9.5 m

θ = 72°

Plug in the values into the equation

Area of the wall = (17×14) + (½*8.7×9.5×sin 72)

Area of the wall = 238 + 39.3024105

Area of the wall to paint ≈ 277.3 m²

b. 20 liters of paint of 1 container cost $21.99

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277.3 m² will need = 277.3 × 1 = 277.3 liters of paint.

20 liters = 1 container of paint

277.3 liters = 277.3/20 = 13.865 ≈ 14 containers

1 container = $21.99

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