x² + bx - 81
there are 2 formula that fit this equation :
>> x² - a² = (x+a)(x-a)
or
>> x² + 2ax² + a² = (x+a)(x+a)
because the last value of our equation is negative value therefore we have to use the first formula >> x² - a² = (x+a)(x-a)
step:
x² + bx - 81
x² + bx - 9²
because we have to follow the first formula x² - a² therefore bx = 0
x² + bx - 9²
bx = 0
b = 0
Answer:
The circumcenter of a triangle is a point that is equidistant from all three vertices.
Step-by-step explanation:
What is equidistant from the vertices of a triangle?
The circumcenter of a triangle is a point that is equidistant from all three vertices.
Answer:
the answer is 39
Step-by-step explanation:
hope that helps
Answer:
1.40476190476
Step-by-step explanation:
