Oblicz tutaj trzeba zastosować wzory skróconego mnożenia
A ) (b+√3) ²
b) (3 -d√5) ( d √5 +3)
c) (√2+ √3)²
d)( 2√2 - √3)²
e) (1-√2)³
f) (2x+√3) ³
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a)(b+√3) ²= b²+2√3b+(√3)²= b²+ 2√3b+ 3
b)(3 -d√5) ( d √5 +3)= 3² - (d√5)² = 9 - 5d²
c)(√2+ √3)²= (√2)²+2×√2×√3+ (√3)²= 2+ 2√6+ 3= 5+ 2√6
d)( 2√2 - √3)²= (2√2)²- 2×2√2×√3 +(√3)² = 8 - 4√6 + 3 = 11 - 4√6
e)(1-√2)³= 1² - 3×1²×√2 +3 ×1×(√2)² - (√2)³= 1 - 3√2 + 6 - 2√2 = 7 - 5√2
f)(2x+√3) ³= (2x)² + 3× (2x)²× √3 + 3×2x(√3)² + (√3)³ = 4x² + 12x²√3 +18x + 3√3
a) (b+√3) ²=b²+2b√3+3
b) (3 -d√5) ( d √5 +3)=9-5d²
c) (√2+ √3)²=2+2√6+3=5+2√6
d)( 2√2 - √3)²=8-4√6+3=11-4√6
e) (1-√2)³=1³-3*1²*√2+3*1*(√2)²-(√2)³=1-3√2+6-2√2=7-5√2
f) (2x+√3) ³=(2x)³+3*(2x)²*√3+3*2x*(√3)²+(√3)³=8x³+12x²√3+18x+3√3
Proszę:)