Variation equation

Solve the equation:

V (2, x + 2) = 90

Final Answer:

x =  8

Step-by-step explanation:

V(2, x+2)=90 (x+2) (x+1)=90  (x+2) (x+1)=90 x2+3x88=0  a=1;b=3;c=88 D=b24ac=3241(88)=361 D>0  x1,2=2ab±D=23±361 x1,2=23±19 x1,2=1.5±9.5 x1=8 x2=11 x>0 x=x1=8

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