ryleylarry12 ryleylarry12

18-12-2020
Mathematics

contestada

Solve using the quadratic formula 2x^2 + 7x - 15 = 0

Respuesta :

jorel1380 jorel1380

18-12-2020

Answer:

1.5 or -5

Step-by-step explanation:

2x²+7x-15=0

Divide by 2:

x²+7x/2-15/2=0

x=-7/2/2 ± √49/4(4)+15/2

=-7/4 ± √49/16+120/16

=-7/4± √169/16=-7/4 ±13/4

=6/4 or -20/4

=1.5 or -5

Answer Link

Otras preguntas

When general mills teams up with hershey foods to create a cereal called reese's peanut butter puffs (the reese's brand belonging to hershey's), what is the gen

Which of the four planes was hijacked first?

Dr. mullins argues that adolescence is such a demanding time that adolescents need several years with as few responsibilities as possible so they can sort out t

A scientific _____ is a process that describes the behavior of a natural phenomenon. A. Law B. Analysis C. Model D. Theory

what is one of the reasons that swift gives for his proposal?

— Ustedes tienen un perro, ¿verdad? — No, no tenemos un perro, pero ____________________ gato es muy travieso. a.) su b.) nuestro c.) mis d.) tu

How can the Central Idea of a text be defined? The message or main idea in an informational text What the main character believes The turning point o

What are some of the characteristics shared by islam christianity and judaism?

The religion of islam was brought to arabia through the teachings of who

A rectangular building lot is three times as long as it is wide. Find a function that models its area A in terms of its width W