Question

Find the positve square root of 49-12 square root 5

Answer 1

Answer:

3√5 − 2

Step-by-step explanation:

49−12√5

= 4 − 12√5 + 45

= 2² − 2(2)(3√5) − (3√5)²

= (2 − 3√5)²

√(49−12√5)

= √(2−3√5)²

= |2 − 3√5|

= 3√5 − 2

Answer 2

Answer:

• The positive square root of 49 is
• root + 49
• The postive square root of 12 is
• root +12