Question Solve the quadratic equation Solve using square roots Solve using the quadratic formula Solve using the PQ formula x1=−7321,x2=7321Alternative Form x1≈−1.963961,x2≈1.963961 Evaluate 3x2×7=81Multiply the terms 21x2=81Divide both sides 2121x2=2181Divide the numbers x2=727Take the root of both sides of the equation and remember to use both positive and negative roots x=±727Simplify the expression x=±7321Separate the equation into 2 possible cases x=7321x=−7321Solution x1=−7321,x2=7321Alternative Form x1≈−1.963961,x2≈1.963961 Show Solution Graph