How many real number solutions does the equation have?
0=-4x^2+7x+8
No Solutions
One Solution
Two Solutions
Infinitely Many Solutions
How many real number solutions does the equation have?
0=2x^2-20x+50
No Solutions
One Solution
Two Solutions
Infinitely Many Solutions

1. Two solutions

2. One solution

Step-by-step explanation:

1. 7^2-5*(-4)*8 > 0 (is a number +)

2. Is (x-5)^2=0 ---> x=5

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct