ANSWER
B. The two middle coefficients add to the correct number but do not multiply to the correct number.
EXPLANATION
The given quadratic trinomial that Tina tries to factor is
Comparing to
we have a=10, b=-13 and c=-3
ac=-3×10=-30
We split the middle term so that their sum is -13.
Tina use
-10,-3
to get
-10x-3x
The sum is -13x alright but the product is not -30.
B is correct.
Answer:
x = <u><em>or </em></u>x =
Step-by-step explanation:
5 − 6 2 − 1 3 = 0
− 6 2 − 1 3 + 5 = 0 -6x^2-13x+5=0 −6x2−13x+5=0 − 1
( 6 2 + 1 3 − 5 ) = 0
Answer:
[1]
Given:
Remove the parenthesis, we get;
Like terms are the those terms with same variable and powers.
Combine like terms;
To write this polynomial in standard form, you write starting with the term with the highest degree, or exponent(i.e ), and then in decreasing order .
Standard form:
To, classify a polynomial by degree, you just look at the highest exponent, or degree.
Since, 3 is the highest degree (), it is a cubic.
Now, classify a polynomial by the number of terms, count how many terms are in the polynomial( )
Number of terms: 4 (so this is polynomial)
[2]
Similarly,
for
Remove the parenthesis, we get;
Combine like terms; we have
Standard form:
Degree of the polynomial is, 2
Number of terms: 3 ( so, this is trinomial)