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tinasidell1972
04.02.2020 •
Mathematics
Find the value of c that makes the expression a perfect square trinomial.
then write the expression as a square of a binomial.
i dont really understand these instructions can someone solve a problem using these examples? heres one of my problems: x^2+3.6x+c
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Ответ:
c = 3.24
(x+1.8)²
Step-by-step explanation:
The question wants you to fill in the last term.
To find the last term, you must use the formula (b/2)^2.
Let's use this formula for the equation you gave: x²+3.6x+c
c = (b/2)²
c = (3.6/2)²
c = 3.24
That is the value of c.
Let's plug in c in the last term for better understanding.
x²+3.6x+3.24 is now factorable.
You can complete the square or use the quadratic formula to factor.The factored form will turn out to be : (x+1.8)²
Ответ:
1 1/4
Step-by-step explanation: