Question

If (a+b)=12 and ab=17 find (4+a)and(4+b)​

Answer 1

Answer:

Step-by-step explanation:

a+b=12

ab=17

a=12-b

(12-b)b=17

12b-b²=17

b²-12b+17=0

Answer 2

Answer:

multiply (4+a)(4+b)=81

Step-by-step explanation:

16+4a+4b+ab

=16+4(a+b)+17

=16+4(12)+17

=81