Respuesta :
The standard form is given by(As highest degree is 2 we will take till degree 2 i.e quadratic)
- ax²+bx+c
So
#1
- 1/2x-1/4
- 0x²+1/2x-1/4
Multiply 4
- 0x²+2x-1
Here
- a=0
- b=2
- c=-1
#2
- 5x²-2x+6
Already in standard form
- a=5
- b=-2
- c=6
Answer:
[tex]\dfrac{5}{2}x^3-\dfrac{9}{4}x^2+\dfrac{7}{2}x-\dfrac{3}{2}[/tex]
Step-by-step explanation:
The product of the two expressions is:
[tex]\left(\dfrac{1}{2}x-\dfrac{1}{4}\right)(5x^2-2x+6)[/tex]
[tex]=\dfrac{1}{2}x(5x^2-2x+6)-\dfrac{1}{4}(5x^2-2x+6)[/tex]
[tex]=\dfrac{5}{2}x^3-\dfrac{2}{2}x^2+\dfrac{6}{2}x-\dfrac{5}{4}x^2+\dfrac{2}{4}x-\dfrac{6}{4}[/tex]
[tex]=\dfrac{5}{2}x^3-x^2-\dfrac{5}{4}x^2+3x+\dfrac{1}{2}x-\dfrac{3}{2}[/tex]
[tex]=\dfrac{5}{2}x^3-\dfrac{9}{4}x^2+\dfrac{7}{2}x-\dfrac{3}{2}[/tex]