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Answer 1

Answer:

solution is x=3 x= -3

• Step-by-step explanation:

MOVE TERM TO LEFT SIDE:-

2x²-19= -1

2x²-19+1 = 0

• ADD NUMBERS:-

2x²-19+1 = 0

2x²-18 = 0

• COMMON FACTORS:-

2x²-18= 0

2(x²-9) = 0

• Divide both sides of the equation by the same term:-

2(x²-9)= 0

x²-9 = 0

• USE THE QUADRATIC FORMULA:-. / = upon

x= -0 + √0² - 4.1 (-9) / 2.1

• Simplify

° Evaluate the exponent

° Multiply the numbers

° Add the numbers

° Evaluate the square root

° Add zero

° Multiply the numbers

x = ±6 / 2

• Separate the equations

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.

x = 6/2 6 upon 2

x= -6/2

• Solve

Rearrange and isolate the variable to find each solution:-

x=3

x= -3

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