Solve the equation 3x squared + 4x – 12 = 0 Give your solutions correct to 2 decimal places.
3x2 +4x-12=0
Step 1: formula (-b+/- square root (b2-4ac))/2a
Step 2: a=3 b=4 c=-12
Step 3: type into your calculator
Step 4: answer 1.44, or -2.77
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