Answer:
Step-by-step explanation:
<u>Equation of a Polynomial</u>
Given the roots x1, x2, and x3 of a cubic polynomial, the equation can be written as:
Where a is the leading coefficient.
We know the three roots of the polynomial -6, -3, and 1, thus:
Since the y-intercept of the polynomial is y=90 when x=0:
90=a(0+6)(0+3)(0-1)
90=a(6)(3)(-1)=-18a
Thus
a = 90/(-18) = -5
The polynomial is:
We must write it in standard form, so we have to multiply all of the factors as follows:
, is a equation.
4q>s+, is an inequality.
4a-5 is an expression
<h3>What is Equation, Expression and Inequality?</h3>
The first Phrase
, is a equation.
A equation contain operand, operators(+,-,*,/) and an equal sign.
The second phrase
4q>s+, is an inequality.
An inequality is a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
The third phrase
4a-5 is an expression
An expression is a combination of numbers, variables, functions
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