Answer:
1. x²=144
√x²=√144
x= 12
2. x²+25=0
√x²+25=0
x+5=0
3. x²-36=0
√x²-36=0
x-6=0
4. 2x²=50
2√x²=50
2√x=50
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Verified answer
Answer:
1. x²=144
√x²=√144
x= 12
2. x²+25=0
√x²+25=0
x+5=0
3. x²-36=0
√x²-36=0
x-6=0
4. 2x²=50
2√x²=50
2√x=50