Answer:
Step-by-step explanation:
<h3>Step 3:</h3>
--------------------(1)
<h3>The next step will be:</h3>
- to find the b² for the expression on the left.
<h3>How to find b²:</h3>
Take the expression
<u>We can also write it as:</u>
According to the formula 
, the b of this expression is 
. So,
b² will be:
So, we will add 
to both sides in Eq. (1)
For STEP 4, the equation will become:
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
143
Step-by-step explanation:
x2 + 12x + 6 + 3x + 1
substitute
(8)2+12(8)+6 +3(8) +1
distrubute
16+96+6+24+1
add like terms
143
2 equations, 2 unknowns. Call height H and base B.
From the first sentence:
HB = 216
From the second sentence:
H = ⅔ B
Plug the second into the first and solve for B:
(⅔ B)B = 216
B^2 = 324
B = 18
Plug that back into either of the original 2 equations and solve for H:
H(18) = 216
H = 12
