Factorisation of Quadartic polynomial. 2y^2+3y+1 . plz
Answers
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=》 2y² + 3y + 1
=》 2y² + 2y + y + 1
=》 2y ( y + 1 ) + 1 ( y + 1 )
=》 ( 2y + 1 )( y + 1 )
hey
answer..
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "y2" was replaced by "y^2".
Step by step solution :
STEP
1
:
Equation at the end of step 1
(2y2 - 3y) - 1 = 0
STEP
2
:
Trying to factor by splitting the middle term
2.1 Factoring 2y2-3y-1
The first term is, 2y2 its coefficient is 2 .
The middle term is, -3y its coefficient is -3 .
The last term, "the constant", is -1
Step-1 : Multiply the coefficient of the first term by the constant 2 • -1 = -2
Step-2 : Find two factors of -2 whose sum equals the coefficient of the middle term, which is -3 .
-2 + 1 = -1
-1 + 2 = 1
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Equation at the end of step
2
:
2y2 - 3y - 1 = 0
STEP
3
:
Parabola, Finding the Vertex:
3.1 Find the Vertex of t = 2y2-3y-1
For any parabola,Ay2+By+C,the y -coordinate of the vertex is given by -B/(2A) . In our case the y coordinate is 0.7500
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