NekoX445127 NekoX445127

31-10-2022
Mathematics

contestada

let g(x)=2x'2 +7xfind a so that g(a)=30

Respuesta :

JonlukeG133706 JonlukeG133706

31-10-2022

Given that g(x)=2x'2 +7x and g(a) = 30 then

30 = 2a^2 + 7a

2a^2 + 7a - 30 = 0

2a^2 + 12a - 5a - 30 = 0

factorizing

2a(a + 6) -5(a + 6) = 0

(2a - 5)(a + 6) = 0

2a - 5 = 0 or a + 6 = 0

2a = 5 or a = -6

a = 5/2 or -6

Answer Link

Otras preguntas

what is the equivalent ratio of 9 to 11

Which description shows an effect of the Americanization of global culture? many different cultures mixing within the United States India forming its own film i

I got a question. What could be the oxidation numbers for each atom that makes up the compound MgBr2?

which activity that a student can participate in at school and temporarily avoid vigorous aerobic activity

what is x-3x-4 but the x is squared to the second power

What are the factors of 1/2 x

the north African maghreb states dominated by the Atlas Mountains do not include morocco

An idea from the Enlightenment that influenced the Declaration of Independence was 1.the social contract. 2.representative government. 3.trial by jury. 4.freedo

Something a person must have in order to live is a

In addition to being the leader of Egypt, what role did the pharaoh play? priest healer god vizier