Question Simplify the expression 49p2+28p+4 Evaluate (−7p−2)2A negative base raised to an even power equals a positive (7p+2)2Use (a+b)2=a2+2ab+b2 to expand the expression (7p)2+2×7p×2+22Solution 49p2+28p+4 Show Solution Find the roots p=−72Alternative Form p=−0.2˙85714˙ Evaluate (−7p−2)2To find the roots of the expression,set the expression equal to 0 (−7p−2)2=0The only way a power can be 0 is when the base equals 0 −7p−2=0Move the constant to the right-hand side and change its sign −7p=0+2Removing 0 doesn't change the value,so remove it from the expression −7p=2Change the signs on both sides of the equation 7p=−2Divide both sides 77p=7−2Divide the numbers p=7−2Solution p=−72Alternative Form p=−0.2˙85714˙ Show Solution
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