Seudónimo Seudónimo

24-01-2020
Mathematics

contestada

What number should be added to both sides to complete the square? x^2 + 8x = 4
16
8
4
32

Respuesta :

profarouk profarouk

26-01-2020

Answer:

16

Step-by-step explanation:

x² + 8x = 4 ⇔ x² + 8x + 16 = 4 + 16 ⇔ x² + 2×4x + 4² = 20 ⇔ (x + 4)² = (2√5)²

Remark : (2√5)² = 20

Answer Link

Otras preguntas

an animal shelter has the ratio of dogs to cats that is 3:2 if there are 30 cats at the shelter how many dogs are there

Assessment of a client reveals the following findings: elevated body temperature, dry skin, low urinary output, and increased pulse rate. the client's health re

For what crop were slaves originally brought into the southern part of Carolina?

A/an _______ measures engine speed by counting the number of ignition pulses. a. timing light b. odometer c. tachometer d. multimeter

You are driving on a slippery road, and have stopped at an intersection. when you pull away from the intersection, your vehicle starts to skid sideways. you sho

How the position of the decimal point changes in a quotient as you divide by increasing powers of 10

A sound wave has a frequency of 425 Hz. What is the period of this wave

Why would an organism behave in a way that reduces its individual fitness?

Which statement describes why geothermal heat pumps work?

What is the result of a cross between one parent that is blood type AB and another parent whose blood type is O?