2x^2y^2 - 7xy + 5y^2 + 8xy - 3y^2 + x^2y^2 + 4y^2
3x^2y^2 - 7xy + 5y^2 + 8xy -3y^2 + 4y^2
3x^2y^2 + xy + 5y^2 - 3y^2 + 4y^2
3x^2y^2 + xy +6y^2
<h3><u>Correct Questions :- </u></h3>
Find the values of P for which the quadratic equation 4x²+px+3=0 , provided that roots are equal or discriminant is zero .
<h3><u>Solution</u>:- </h3>
Let us Consider a quadratic equation αx² + βx + c = 0, then nature of roots of quadratic equation depends upon Discriminant (D) of the quadratic equation.
For equal roots

So,

Here,
Now,







Thus, the values of P for which the quadratic equation 4x²+px+3=0 are-
4√3 and -4√3.
Answer: SECOND OPTION
Step-by-step explanation:
You can solve the system of equations by the method of substitution:
- You must susbtitute the second equation into the first equation and solve or x:

- Now, you must susbtitute the value of x obtained above into the second equation to calculate the value of y. Then, you have:

Therefore, you obtain:
(
)
Answer:
Fiona=11
Dan=33
Stephen=22
Step-by-step explanation:
Fiona:1/2+3+1×66
1/6×66
=11
Dan: 3/6×66=33
Stephen:2/6×66=22
Answer:

Step-by-step explanation:
Length=2*Width
L=2*W
Perimeter=28.8 cm
Perimeter of a rectangle= 2(Length+Width)


