Question

me ajudem
A(x+9)(x-9)
B(m-1)(m+1)
C(3x+5)(3x-5)
D(2-7x)(2+7x)
E(m^2-6)(m^+6)
F(-2a+5)(-2a-5)
G(0,3-a)(0,3+a)
H(p^3+3)(p^3-3)

Answer 1

Boa tarde

(a + b)*(a - b) = a² - b²

A (x+9)(x-9) = x² - 81
B (m-1)(m+1) = m² - 1
C (3x+5)(3x-5) = 9x² - 25
D (2-7x)(2+7x) = 4 - 49x²
E (m^2-6)(m^2+6) = m^4 - 36
F (-2a+5)(-2a-5) = 4a² - 25
G (0,3-a)(0,3+a) = 0.09 - a²
H (p^3+3)(p^3-3) = p^6 - 9