Question

|. Tell wether Quadratic Equation or Not Quadratic Equation..

1.) 2x-3x=0

2.)4x²-5=0

3.)x(x+2)=3

4.)6x-7=4x²

5.)(2x-3)(4x-1)=10

||. Write the following equations in standard form.

1.)2x(-x+5)=8

2.)x²+4x-3=5

3.)(x+2)(x-3)=2

4.)5x-3x²=11

5.)x(x-4)=0

|||. Write each equation in standard form then identify the values of a, b, and c.

1.)x-4x²=12

2.)-3+6x²=2x

3.)x(x-3)=0

4.)3x²-9=-2

5.)2x(x-3)=10

Please help me these I really really need this.

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Answer 1

#1

Quadratic equation means having degree highest 2

1. No
2. Yes
3. Yes(x×x=x^2)
4. Yes
5. Yes

#2

1. $-2x^2+10x-8=0=>2x^2-10x+10=0$
2. $x^2+4x-3-5=0=>x^2+4x-8=0$
3. $x^2-x-6=0$
4. $3x^2-5x+11=0$
5. $x^2-4x=0$