Question Factor the expression −2(5z+4) Evaluate −10z−8Solution −2(5z+4) Show Solution Find the roots z=−54Alternative Form z=−0.8 Evaluate −10z−8To find the roots of the expression,set the expression equal to 0 −10z−8=0Move the constant to the right-hand side and change its sign −10z=0+8Removing 0 doesn't change the value,so remove it from the expression −10z=8Change the signs on both sides of the equation 10z=−8Divide both sides 1010z=10−8Divide the numbers z=10−8Solution More Steps Evaluate 10−8Cancel out the common factor 2 5−4Use b−a=−ba=−ba to rewrite the fraction −54 z=−54Alternative Form z=−0.8 Show Solution
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