Step-by-step explanation:

solving quadratic equations by extracting the square roots

(this method is convenient if the quadratic equation lacks the linear term)

• isolate the constant term

3x²+7-7=250-7

3x²=243

• divide all the terms by 3

x²=81

• extract both sides

x=±9

x=9 x=-9

Answer:

Step-by-step explanation:                                                                                        6+7= 250                                                                                                                                 13=250