Answer:
1. x²=16
x² -16=0
(x+4) (x-4)=0
x+4=0 or x-4=0
x= -4 or x=4
Answer:x = -4 or x=4
2. 2x²=8
x²=8/2
x²=4
x=√4 or x = -√4
x=2 or x= -2
Answer: x=2 or x= -2
3. x²-1=10
x²=10+1
x²=11
x=√11 or x= -√11
Answer: x=√11 or -√11
4. x²-45=0
x²=45
x=√45 or x-√45
x=3√5 or x-3√5
Answer: x=3√5 or x-3√5
5. x=64/81
x=-√64/81
or
x=√64/81
x=8/9 or x=-8/9
Answer: x=8/9 or =x-8/9
Step-by-step explanation:
i hope it's help po
