1) x²+10x+25-x²+2x-1-48=0
12x-24=0
x= 2
2) (3x-2)(3x+2)
3) 159²-2*159*59+59²= (159-59)²= 100²= 10000
Ответ:
1. x во второй +10x+25-(x во второй -2x+1)=48
x во второй+10x+25- x во второй +2x-1=48
12x+24=48
12x=48-24
12x=24
x=2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1) x²+10x+25-x²+2x-1-48=0
12x-24=0
x= 2
2) (3x-2)(3x+2)
3) 159²-2*159*59+59²= (159-59)²= 100²= 10000
Verified answer
Ответ:
1. x во второй +10x+25-(x во второй -2x+1)=48
x во второй+10x+25- x во второй +2x-1=48
12x+24=48
12x=48-24
12x=24
x=2