Seudónimo Seudónimo
  • 02-12-2020
  • Mathematics
contestada

Find all real values of x that satisfy the equation x^2 - 7x = 98.

Respuesta :

cmonahan cmonahan
  • 02-12-2020

Answer:

-7 and 14

Step-by-step explanation:

x^2-7x=98

subtract 98 so that the equation equals 0

x^2-7x-98=0

factor out the equation finding numbers that subtract or add to 7, which would be 14 and 7 as they multiply to 98 and subtract to 7.

(x+7)(x-14)=0

solve for zero

x+7=0 -> x= -7

x-14=0 -> x= 14

Answer Link

Otras preguntas

if 80% is 72 what is 10%
A hospital cafeteria has 20 tables. 65% of the tables have 6 chairs at each table. The remaining 35% of the tables have 4 chairs at each table. Complete the mo
multiples of 7and 4
I need help with question C & D.
How do I do special right triangles
Which expressions are equivalent to (4 • a) • 2 Choose all that are correctA: 4 • (a • 2)B: 2 • (4 • a)C: 4 • 2 • a • 2D: 8a E: 4 • 2 + a • 22nd Question:Which
What is each part of Congress meant to contribute to the government as a whole
Which type of cell ines the cavities and surfaces of blood vessels and organs
how to resolve 81÷3=?
What is the net ionic equation of the reaction of MgSO4 with Pb(NO3)2?