Возведите в квадрат
1.(a+c)^2 6. (a^2-b^2 )^2
2.(z-1) ^2 7. (a^2-5 ) ^2
3.(5a-3) ^2 8. (-3x+y) ^2
4.(6+2c)^2 9. (7-b^3) ^2
5.(-5t+8z) ^2 10. (c^2+d^2)^2