Solve for all values of x by factoring.
X? – 48 = 1

Step-by-step explanation:

hello :

x²-48 =1

x²-48-1 =1-1

x²-49=0  means : x²-7²=0

by identity : a²-b²= (a-b)(a+b)

by factoring: (x-7)(x+7)=0

x-7=0 or x+7=0

x=7 or x= -7

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

correct answer:

b.(19,-2)