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Euniwoo143go
Answered

3. What is the solution set of the equation (4x - 7)² - 121 = 0?
a. {+18)
b. {7+ 11 squared]
c. {9/2, -1}
d. {18/4, -1}​

Sagot :

Britneymay350go

Answer:

C

Step-by-step explanation:

(4x-7)²-121=0

(4x-7-11)×(4x-7+11)=0

(4x-18)×(4x+4)=0

2(2x-9)×4(x+1)=0

(2x-9)×(x+1)=0

2x-9=0

x+1=0

x=9/2

x= -1

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