Question

a+b=5, ab=-50 what is the value of a-b​

Answer 1

Answer:

15

Step-by-step explanation:

A+B=5

AB=-50

(A+B)^2=A^2+B^2+2AB

(5)^2=A^2+B^2+2 (-50)

25=A^2+B^2-100

25+100=A^2+B^2

125=A^2+B^2

Now

(A-B)^2=A^2+B^2-2AB

(A-B)^2=125-2 (-50)

=125+100

=225

(A-B)=(225)^(1/2)

(A-B)=15

Answer

(A-B)=15

Answer 2

Answer:

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