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Today at 12:51 AM
Mathematics

Answered

U(x) = -2x-2
W(x)= 2x^2-1

Find the value of W(u(3))

Answer :

Today at 12:55 AM

[tex]u(x)=-2x-2;\ w(x)=2x^2-1\\\\w(u(3))\\\\\text{First calculate u(3). Put the value of x = 3 to the equation of u(x):}\\\\u(3)=-2(3)-2=-6-2=-8\\\\w(u(3))=w(-8)=2(-8)^2-1=2(64)-1=128-1=127\\\\Answer:\ \boxed{w(u(3))=127}[/tex]

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