Question

LESSON: SOLVING QUADRATICS EQUATIONS

Answer 1

Step-by-step explanation:

x² + 9= 0

(move internode)

x²= -9 (heve no solution and parentheses )

if the number is negative and we are asked to find the root of n (if n is an even number). then it has no solution. example that have solution:

x²= 9

x = √9

x= 3

because, (3)²= (3) × (3)

= 9

or it could be: (-3)²

= 9

You must use parentheses if you want to convert it to the square root

2. x² - 4= -11

(move internode)

x²= -11 + 4

x²= -7 (haven't no solution because 7 is not the number of the square root and there are no brackets)