Solve y^2 = -64, where y is a real number

There is no solution to this equation in the Real number system

Step-by-step explanation:

There is no number which squared could render a negative number.

so

has NO SOLUTIONS in the Real number system. the equation has solutions only if we expand the solution set to the complex numbers.

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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