princessryan68 princessryan68

09-03-2021
Mathematics

contestada

7b^2 - 14b - 56 = 0
Solve by completing the square

Respuesta :

GreenSoda GreenSoda

09-03-2021

Answer: 7(b-1)^2-63

Step-by-step explanation:

Factor out 7

7(b^2-2b-8)

Add and subtract (-1)^2:

7(b^2-2b-8+(-1)^2-(-1\)^2)

Complete the square:

7((b-1)^2-8-(-1)^2)

Simplify:

7(b-1)^2-63

Answer Link

Otras preguntas

How to you solve 7 7/10- 3 4/5

Does anyone know how to do this? I can only get one answer :/Solve the equation:sin (x + 80°) = 0.6for -180° < x 180°Ans - x = –86.26° or 126.26°

I might say, secondly, some people wonder well, what does Mississippi have to do with Harlem?... America is Mississippi. There's no such thing as a Mason-Dixon

(9x+5h)2 2 is abve the parentheses answer is ______

list three different ways to write 5 (with an exponents of 11) as the product of two powers. explain why all three of you expressions are equal to 5 with an exp

What is 3.14 in math

I need help with this Algebra question?

Why did Japan bomb Pearl Harbor?

What is the value of free falling acceleration?

In Brazil the indigenous population was around 3.5 million before the arrival of European today the indigenous population is around