Sq is equal to 27 you have to set St and tq equal to find x then substitute it in
That is a parabola.
All domain of a parabola are, (-∞,∞).
The range would be, (-∞, 0]
Answer:
Archimedes
Step-by-step explanation:
The father of Mathematics is known as Archimedes
<u>-TheUnknownScientist</u>
First we note symmetry in the expression's coefficients.
We also note that 7*3=21, and 7+3=10.
From the rational roots theorem, we are tempted to try with 3 and 7 as coefficients of the factors.
Try
(7b+3)(3b+7)=21b^2+(49+9)b+21
By switching the sign of 3b+7 to 3b-7, we get the signs right, to check:
(7b+3)(3b-7)=21b^2+(9-49)b-21=21b^2-40b-21 ....right!
So
(7b+3)(3b-7)=21b^2-40b-21
