Question

1.Reduceti termenii asemenea:
a) 3$a^{2} b - 5ab^{2} - 7a^{2} b + a^{2}b + 5ab^{2}$
b)$2 \sqrt2{x}^{3} - 3 x^{3} - 4x - (4x + 3 x^{2} - 2\sqrt2{x}^{3})$
c)$\sqrt2{x} - \sqrt3{y} - \sqrt2{y} + \sqrt3{x}$

Answer 1

a)3a²b-7a²b+a²b  se reduce 5ab² cu - 5ab²  si rezultatul=-3a²b
b)2√2x²-3x³-4x-4x-3x³+2√2x³=4√2x³-6x³-8x
c)√2x-√3y-√2y+√3x=(x+y)(√2-√2-√3+√3)=0*(x+y)=0