Question

1. Calculati,folosind formulele de calcul prescurtat:
c) (3√5x-1)²+x√180-(2√3x-√5)(2√3x+√5)
d) (x√14+3)²+(x√7-3√2)²+(x√15-√7)(x√15+√7)
e) (x√6-2)²+2(x+√6)²+(√6-x√2)(√6+x√2)
f) 2(3√3+1)²+3(5√3-2x)²-(5x-√15)(5x+√15)

2) Calculati,folosinf formulele de calcul prescurtat:
a) (√3x+2)²+(2√3x-1)²-(3√3x-√2)(3√3x+√5)
b) (3x-√5)²+(3√5x+1)²-(2√7x-√5)(2√7x+√5)
c) (√6x+√2)²+(√3-2x)²-(3√2-√3x)(3√2+√3x)
d) (√5-3x)²+(√15+√3x)²-(3√3-√2x)(3√3+√2x)
Va rog mult e foarte urgent.

Answer 1

c) 6√10x²+3√5x-1+x√180- 4√6x²-√25= 30x+3√5x-1+x√180-12x-5= 28x+3√5x-6+x√180 ti am adus o la cea mai simpla forma