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AlladinOne [14]
4 years ago
6

Sari is factoring the polynomial 2x2 + 5x + 3. What is the missing number in her factorization? 2x2 + 5x + 3 = (2x +[ ? ])(x + 1

)
Mathematics
1 answer:
Vikentia [17]4 years ago
7 0

Answer: 3

Explanation:

The polynomial is:

2x^2+5x+3 (1)

We want to factorize it as follows:

(2x+C)(x+1)

where C is the unknown number we want to find.

Solving explicitely the last equation,

(2x+C)(x+1)=2x^2 +2x +Cx +C=2x^2 +(2+C)x+C (2)

We want eq.(2) to be identical to eq.(1). From the last term, we see immediately that it must be C=3, and 2+C=5. So the missing number is 3, and the factorization is

(2x+3)(x+1)

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rjkz [21]
Try answer C or B because either one could be the right answer
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3 years ago
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Write the equation of the line that is perpendicular to 4x - 3y = 6 and passes through (4, -2)
Svetlanka [38]
Perpendicular is slope multiplies to -1
for
ax+by=c
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point slope form
y-y1=m(x-x1)
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a point is (x1,y1)

point (4,-2)
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3 years ago
Edward tells Tom and his brother that any two different gym memberships will eventually have a month in which they are the same
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artcher [175]
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