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ERROR ANALYSIS Describe and correct the error
in finding the value of c that makes the expression a
perfect square trinomial.
x² + 30x + c
Х
x2 + 30x +
30
2
x2 + 30x + 15
La picture of your work or type your work.​

ERROR ANALYSIS Describe and correct the errorin finding the value of c that makes the expression aperfect square trinomialx 30x cХx2 30x 302x2 30x 15La picture class=

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Step-by-step explanation:

Our polynomial is x²+30x +c with a missing value c

c should make this polynomial expression a perfect square

  • Write the expression with a decreasing order of degrees

x²+ 30x+c

  • write the terms as factors

x² + 2*15*x +c

  • notice that the in the middle we have 2*15*x so our third term will be 15²

x²+2*15*x+15² ⇒ c = 15²=225

  • arrange your perfect square

(x+15)²

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