f(-2) = 26.
Chat with our AI personalities
To find f(-2), substitute -2 into the function f(x). So, f(-2) = 2(-2)^3 - 2(-2)^2 + 50. Simplifying this expression gives f(-2) = 2(-8) - 2(4) + 50 = -16 - 8 + 50 = 26.
-2x^2 = -50 x^2 = 25 x = 5, -5
Without an equality sign the given quadratic expression can't be classed as an equation but knowing how to use the quadratic equation formula would be helpful when given such problems.
50 + 50 + 94 + 94 = 288
20 + 50 + 20 + 10 = 50 = 150
thinking is amazing