Which shows the four-term polynomial and factored form of x² + 6x - 27?
x2 + 3x - 9x - 27 = (x + 3)(x - 9)
x2 + 6x - 3x - 27 = (x + 6)(x - 3)
x2 + 9x - 3x - 27 = (x + 9)(x - 3)
x2 + 3x - 6x - 27 = (x + 3)(x - 6)
Solution:
Given, the expression is x² + 6x - 27.
We have to find the four-term polynomial and factored form of the given expression.
On factorising x² + 6x - 27,
By splitting the middle term,
x² + 6x - 27 = x² + 9x - 3x - 27
Therefore, the four-term polynomial is x² + 9x - 3x - 27
Now, x² + 9x - 3x - 27 = x(x + 9) - 3(x + 9)
Taking out common term,
= (x + 9) (x - 3)
Therefore, the factored form of the equation is (x - 3)(x + 9)
Which shows the four-term polynomial and factored form of x² + 6x - 27?
Summary:
x² + 9x - 3x - 27 = (x + 9) (x - 3) shows the four-term polynomial and factored form of x² + 6x - 27.
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