1. (3х+2)^2-(4-3х)^2<37х+14 2. (5х-2)^2-15>(4х-1)^2+9х^2

Question

1. (3х+2)^2-(4-3х)^2<37х+14<br> 2. (5х-2)^2-15>(4х-1)^2+9х^2

Answer 1

1)9x^2+12x+4-16+24x-9x^2<37x+14<br>36x-37x<14+16-4<br>-1x<26<br>x>26
2)25x^2-20x+4-15>16x²-8x+1+9x²
-12x>12
x<-1<br>

Answer 2

1. 9х²+12х+4-(16-24х+9х²)≤14+37х
9х²+12х+4-16+24х-9х²≤14+37х
37х-36х≥26
х≥26

Comments

спасибо, а можете еще решить 2 ?

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2. (5х-2)²-15>(4x-1)²+9x²
25x²-20x+4-15>16x²-8x+1+9x²
25x²-20x-11>25x²-8x+1
-12x>12
x<-1 x∈(-∞ 1)