Question

If a²+ b²= 25 and ab = 12. find the value of:

a. (a+b)

b. (a-b)​

Answer 1

Answer:

(a+b) = 7 , (a-b) = 1

Step-by-step explanation:

a²+ b²= 25 and ab = 12

2ab = 24

(a+b)² = a²+ b²+2ab

= 25 +24

= 49

(a+b) = √49

= 7

(a-b)² = a²+ b²-2ab

= 25-24

= 1

(a-b) = √1

= 1

Answer 2

Answer:

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