Теңдеуді шешіңдер (33.8-33.9): 33.8. 1) (х + 1)3 – 4х = 5+ x=(x+3);
2) (1 - у)3 +8y = 7 +y?(3 - у);
3) (х+1)3 + (х – 1)3 – 2x3 = 12;
4) (1 +y)3 + (1 - у)3 – 6y2 = 3y - 1.
33.9. 1) (2 + х)3 — х?(6 + х) = 11х + 19;
2) (2 – 2)3 – 22(2 – 6) = 132 – 7;
3) (у + 3)3 – 2y – 30 = y?(9 +у);
4) (3 - t)3 + 3t + 21 =-t?(t – 9).​

PolinaCat29    1   25.01.2021 08:34    2