1. You have a chance to buy a promissory note. Natalia Sandino borrowed some money from her mother, agreeing to repay her with 7
1 answer:
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The equation is 
. We can rewrite the equation as:
.
Our next step here is to take the square root of both sides, remembering that
.
Thus, we have
. Our final step is solving the absolute value equation, which yields:
or 
.
Solution set: {
}
Our next step here is to take the square root of both sides, remembering that
Thus, we have
Solution set: {