"( )" are parentheses ... "(" open parenthesis, and ")" close parenthesis "[ ]" are brackets ... "[" open bracket, and "]" close bracket Also to avoid confusion when using quadratic formula: use x and y NOT a and b. So use x^2 - y =13 and y^2 - x = 13
This is the time of exam when you know the question is of 2 marks but teacher has marked it as a 15 so you do what you can to extend the answer😅😅😅😅😅😅😅😅😅😅😅😅😅
Nice Explanation ❤
"( )" are parentheses ... "(" open parenthesis, and ")" close parenthesis
"[ ]" are brackets ... "[" open bracket, and "]" close bracket
Also to avoid confusion when using quadratic formula:
use x and y NOT a and b. So use x^2 - y =13 and y^2 - x = 13
This is the time of exam when you know the question is of 2 marks but teacher has marked it as a 15 so you do what you can to extend the answer😅😅😅😅😅😅😅😅😅😅😅😅😅
a = - 4 and b = 3 are satisfying values
A=-4
B=3
3, -4
can't use b to be two different variables at 3:46
A=minus 4&b=3.
A=-4 & b=3 *?
Would you suggest me some books for Algebra?
Lindo