1) No; you are incorrect. "0" is NOT a solution.
Plug in "0" for "x" ;
8*0² + 23 =? 823? ;
8*0 + 23 =? 823? ;
0 + 23 = ? 823 ? ; No! ; "0 + 23 = 23 " ; NOT "823" .
_________________________________________________
2) The answers: x = 10, -10 ; or, write as: x = ± 10 .
_________________________________________________
To solve:
GIven: 8x² + 23 = 823 ;
Subtract "23" from EACH SIDE of the equation:
_____________________________________________
8x² + 23 - 23 = 823 - 23 ;
to get:
8x² = 800 ;
Now, divide EACH SIDE of the equation by "8" ;
8x² / 8 = 800 / 8 ;
to get: x² = 100 ;
Take the "square root" of EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x" ;
√(x²) = √(100) ;
x = <span>± 10 .
The answers: x = 10, -10 ; or, write as: x = </span><span>± 10 .
_____________________________________________________</span>
Answer:
j=57/8
Step-by-step explanation:
D) 72 units, you get this answer by adding up 15+15+22+20 units to get the perimeter.
Answer:
6m
Step-by-step explanation:
Area of a Square = Side × Side. Therefore, the area of square = Side² square units.
Area = Side²
A= (6m)²
A= (6m) x (6m)
A= 36m²
Square is a regular quadrilateral. It has all the four sides of equal length.
→ side=6m
Answer:
1 <u>6</u>
2 10
3 
4 
5 5
Step-by-step explanation:
