Answer: Step one you need to remove the parentheses making your equation 15-4x^2=10 then you have to subtract 15 from both sides then making you equation 4x^2=10-15 then simplify 10-15 to -5 you want to get the X alone so you divide by 4 on both sides obviously two negatives make a positive so your equation will be x=5/4 then take the square root of both sides X=±√5/4 than simplify to X=±√5/√4 since 2x2 is 4 the square root of 4 is 2 making your answer X=±√5/2
Step-by-step explanation: