4х²-36=0
4х²-36=04х²=36
4х²-36=04х²=36х²=9
4х²-36=04х²=36х²=9х=±3
4х²-36=04х²=36х²=9х=±3х=3 х=-3
4х²-36=04х²=36х²=9х=±3х=3 х=-3ответ: -3; 3.
4х²-36=0
4х²-36=04х²=36
4х²-36=04х²=36х²=9
4х²-36=04х²=36х²=9х=±3
4х²-36=04х²=36х²=9х=±3х=3 х=-3
4х²-36=04х²=36х²=9х=±3х=3 х=-3ответ: -3; 3.