Question Find the roots b=8521Alternative Form b≈0.247059 Evaluate 21−85bTo find the roots of the expression,set the expression equal to 0 21−85b=0Move the constant to the right-hand side and change its sign −85b=0−21Removing 0 doesn't change the value,so remove it from the expression −85b=−21Change the signs on both sides of the equation 85b=21Divide both sides 8585b=8521Solution b=8521Alternative Form b≈0.247059 Show Solution
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