Makakuha ng mga sagot sa iyong mga pinakamahahalagang tanong sa IDNStudy.com. Hanapin ang impormasyon na kailangan mo nang mabilis at madali sa pamamagitan ng aming komprehensibo at eksaktong platform ng tanong at sagot.

how to change the quadratic equation into standard form
1.3x-2x²=7
2.5x-2x²=6x
3.(x+3)(x+4)=0
4.(2x+7)(0-1)=0
5.2x(x-3)=15
6.(x+7)(x+7)=-3x
7.(x-4)²+8=0
8.(x+2)²=3(x+2)
9.(2x-1)²=(x+1)
10.2x(x+4)=(x-3)(x-3)

PLEASE HELP!! I NEED BECAUSE THIS IS A ASSINGMENT
thanks



Sagot :

Use the formula: 
[tex]y=a x^{2} +bx+c[/tex]

[tex]a x^{2} [/tex] (quadratic term)
[tex]bx[/tex] (linear term)
[tex]c[/tex] (constant)

Ex.
[tex]3x-2 x^{2} =7[/tex]

[tex]-2 x^{2} +3x=7[/tex] or [tex]-1(-2 x^{2} +3x = 7)[/tex] -> [tex]2 x^{2} -3x=-7[/tex]

Just do the same thing to the other equations. But before you change it to standard form remember to simplify it. Good luck :)
Click "thanks" if I helped. It'll be appreciated. :)


the standard form of quadratic equation is ax^2 + bx + c = 0
where a, b and c are constant values. 
example:
[tex] 2x^{2}+5x+3=0 [/tex]
In this one a=2b=5 and c=3

so in no. 1. [tex]3x-2 x^{2} =7[/tex]
Answer:
[tex]1.2 x^{2} -3x+7=0[/tex]

so your answer should be in this form:
[tex]a x^{2} +bx+c=0[/tex]