What is the exact value for the expression the square root of 189. − the square root of 21. + the square root of 84.? Simplify i
f possible.
1 answer:
I say it's 0.
And that's an understatement.
You might be interested in
F(2)= -3(2)+9 = 3
f(0)= -3(0)+9 = 9
3f(2)-2f(0)
= 3(3)-2(9)
= -9
The number is 5 and 3 and 5+3=8
Answer : 19 - 21 hope this helps
<span> The discriminant of the equation will be equal to zero.
</span>
