Question

les doy todos mis puntos de brainly si me re
sponden ​

Answer 1

Respuesta:

Explicación paso a paso:

(x+8)²= x²+2(x)(8)+8²= x²+16x+64

(x-5)(x+5)= x² - 5² = x² - 25

(x-10)(x-2)= x² + (-10-2) x + (-10)(-2) =  x²  - 12x +20

$(a^{8}- x^{6})^{2} = (a^{8} )^{2} -2(a^{8} .x^{6})+( x^{6} )^{2} =$ $a^{16} -2a^{8} x^{6} +x^{12}$

(5x-y)³= (5x)³+y³ - 3(5x)(y)(5x+y) = 125x³+y³-15xy(5x+y)=125x³+y³-75x²y-15xy²

(x-9b)²= x²-2(x)(9b)+(9b)²= x² - 18xb + 81b²

$(\frac{3}{7}a- \frac{2}{11} b)(\frac{3}{7}a+ \frac{2}{11} b)=$ $(\frac{3}{7}a)^{2} -( \frac{2}{11} b)^{2} =$$\frac{9}{49}a^{2} - \frac{4}{121} b^{2}$

(p-7)(p+12)= p² + (-7+12) p  + (-7)(12) = p² + 5p - 84

(5x-6)² = (5x)² -2(5x)(6)+6² = 25x² - 60x + 36

(-3-x)(-3+x)= (-3)² - x² = 9 - x²

(2xy + 6)(2xy - 6) = (2xy)² - 6² = 4x²y² - 36