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jika adee sdh belajar segitiga pascal lbh mudah
untuk latihan kk' jawab cara biasa saja dulu yaaa
a)
(x+5)^2
= (x+5)(x+5)
= x(x+5) + 5(x+5)
= x^2 + 5x + 5x + 25
= x^2 + 10x + 25
b)
(x-3)^2
= (x-3)(x-3)
= x(x-3) -3(x-3)
= x^2 - 3x - 3x + 9
= x^2 - 6x + 9
c)
(3a^2)^3
= (3a^2)(3a^2)(3a^2)
= 27a^6
d)
(6+p)^2
= (6+p)(6+p)
= 6(6+p) + p(6+p)
= 36 + 6p + 6p + p^2
= 36 + 12p + p^2
no 5)
a) 4x^2 / 8x^2 = 1/2
b) 2x^2y / 4y^2 = x^2 / 2y
c) (2x^2yz + 8xy^2z) / 2xy = xz / 4yz