sloamitlopez
sloamitlopez
26-04-2017
Mathematics
contestada
identify the roots f(x)=3x^2-27
Respuesta :
apologiabiology
apologiabiology
26-04-2017
factour ouf 3
f(x)=3(x²-9)
recognize diference of 2 perfect squres
a²-b²=(a+b)(a-b)
x²-9=x²-3²=(x+3)(x-3)
so
f(x)=3(x+3)(x-3)
seto to zero to find roots
0=3(x+3)(x-3)
0=x+3
-3=x
0=x-3
3=x
roots at x=-3 and 3
Answer Link
VER TODAS LAS RESPUESTAS ( 96+ )
Otras preguntas
Which pair of events is dependent? You get a head and a tail in two coin tosses with two different coins. You get a head and a tail in two coin tosses using the
What were Hitler's reasons for invading the Soviet Union? He was greedy. The Russians made him angry; we weren't interested in their problems. He wanted Russia'
How did the events surrounding the Bonus Army in 1932 affect people’s attitudes? More Americans wanted MacArthur to be president. More Americans disliked Hoover
Find the product mentally. (z - 12)(z + 12) A: z2 - 144 B: z2 - 24t - 144 C: z2 + 144
80 questions how many can I get wrong to get 75%
4% of what number is 5
Question 6 In which state of matter do the particles move the MOST freely? solid liquid gas 3 points Question 7 In which state of matter
Which algebraic property could be used to rewrite 3x ⋅ (7y ⋅ 4) as (3x ⋅ 7y) ⋅ 4? Associative Property of Addition Associative Property of Multiplication Commut
80 questions how many can I get wrong to get 75%
A line passes through the point (–2, 4), and its y-intercept is (0, –6). What is the equation of the line that is perpendicular to the first line and passes thr
