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Temka [501]
3 years ago
7

Solve the equation using the quadratic formula 3x^2 =2(2x+1)

Mathematics
2 answers:
shtirl [24]3 years ago
5 0
3x² = 2(2x+1)


Expand the brackets

3x² = 4x + 2


Rearrange

3x² - 4x - 2 = 0


Quadratic formula is

(-b ± √(b² - 4ac)) / 2a


Where

a = 3
b = -4
c = -2


Therefore, putting these values in to the quadratic formula:

x = 15.487
or
x = -3.487

Round the answers how you will.
Nadusha1986 [10]3 years ago
3 0
Step 1: Make equation equal to Zero

3x^2 = 4x + 2


3x^2 - 4x - 2 


Step 2: use equation

a= 3 b = -4 c= -2 

after plugging in answer should be

(2 + or - sqrt 10) / 3 


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Can someone help me with these both
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Hello,
so all you have to do is match the abbreviations to the triangles. The abbreviations stand for what is the SAME in both triangles, denoted by similar markings on equal sides and angles.

Abbreviations:
SSS = Side-Side-Side
SAS = Side-Angle-Side
ASA = Angle-Side-Angle
AAS = Angle-Angle-Side
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* Note - the angle side angle must go around the triangle in that order. ASA has the side BETWEEN the congruent angles.. SSA does NOT work.

(9.) ASA
(10.) AAS
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I hope this helps you


0,644


644/1000


161/250
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