" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5. (4y-11)^2=(-11+4y)^2=(-11)^2+2(-11)(4y)+(4y)^2=121-88y+16y^2
9. 12x+6/4x^2-1=6(2x+1)/(2x+1)(2x-1)=6/(2x+1)
10. 2a+10/3a^2+14a-5 = 2(a+5)/(3a-1)(a+5) =2/3a-1
12. (z-3/z+2)+(z-2/z+3)=((z-3)(z+3))+((z-2)(z+2))/(z+2)(z+3)
=(2z^2-13)/(z+2)(z+3)
=(2z^2-13)/z^2+5z+6