3 years ago

Solve the equation by the square root (7x+4)^2=4

Mathematics

1 answer:

hjlf3 years ago

4 0

Step-by-step explanation:

(7x+4)^2 = 4

7x^2 + 4^2 = 4

49x + 16 = 4

-16 -16

49x = -12

--- ----

49 49

x= 4.0

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