unknown54321 unknown54321

24-03-2017
Mathematics

contestada

witch of the binomials below is a factor of this trinomial
x^2 + 19x + 84
A)x-7
B)x^2+12
C)x+84
D)x+7

Respuesta :

Chaconne Chaconne

24-03-2017

Let's factor the trinomial.
x^2+19x+84.
Find two numbers that add to 19 and multiply to 84.
They happen to be 7 and 12.
x^2+7x+12x+84
x(x+7)+12(x+7)
Gather like terms.
(x+7)(x+12)
Therefore, the answer is D.

Answer Link

Otras preguntas

Give an example of a mineral you use everyday and how you use it ?

How does Martin Luther king portray the appalling condition of negro community

which heir thinks that they have the answer(The Westing Game)

Helpp Tri-county Supply budgets 5% of the previous year's total revenue for utilities. The receipts from the last year showed revenue of $4,500,000.00 How much

Complete this item For the following figure, can you conclude that ? Select true or false. PLEASE HELP

what is the length of the other dimension if the two drawings are similar?

2x+10=6(x-1) What does x equal

Why utopia failed? Plz plz answer

please help a polynomial of degree 4 has 3-2i and 1+i as zeros. Are there any x-intercepts? Explain why?

A student found the mass of an object to be 5.5 g. The actual mass of the object is 5.3 g. What is the percent error in the measurement?