What substitution should be used to rewrite 16(x3 + 1)2 – 22(x3 + 1) – 3 = 0 as a quadratic equation? u = (x3) u = (x3 + 1) u = (x3 + 1)2 u = (x3 + 1)3

answer:

step-by-step explanation:

we have been given the equation

we have to rewrite this equation as a quadratic equation.

looking into the given equation, we can see that we have exponent 2 on the expression (x^3+1).

since the quadratic equation is in the form

hence, we can assume

so, the equation will become

hence, the required substitution is given   by

Ibelieve the best substitution here would be  u=(x3+1). when you are substituting you are trying to find the biggest thing that the terms have in common. the only thing that both terms have in common is (x3+1). it's not (3x) because that would leave out the 1 that they both have in common in the parenthesis. it can't be (x3+1)2 or (x3+1)3 because the two terms only have one (x3+1) in common. you can't substitute for one that works but not the other due to it being a higher exponent than the original term has. hope this !

Idon’t feel like doing the math but you need to do 2.24 divided by 7