BANTU YA KAK...KASIH LANGKAH2
HARI SENIN MAU DIKUMPULKAN 
HARI SENIN MAU DIKUMPULKAN
Jawaban:
21.(x+1)²
22.(x-4)(x+3)
23.(x-4)(x+7)
24.-1(x-5)(x-2)
25.-1(x-5)(x-2)
Penjelasan dengan langkah-langkah:
21.x²+x+x+1
x(x+1)+x+1
x(x+1)+x+1
(x+1)(x+1)
(x+1)(x+1)
(x+1)²
22.x²-x-12
x²+3x-4x-12
x²+3x-4x-12
x(x+3)-4(x+3)
(x-4)(x+3)
23.x²+3x-28
x²+7x-4x-28
x²+7x-4x-28
x(x+7)-4(x+7)
x(x+7)-4(x+7)
(x-4)(x+7)
24.-x²+7x-10
-1 (x²-7x+10)
-1 (x²-7x+10)
-1 (x²-2x-5x+10)
−1 (x² - 2x − 5x + 10)
-1(x(x-2)-5(x-2))
-1(x-5)(x-2)
25. 2x² - 2x-112
2(x²-x-56)
2(x²-x-56
2(x²+7x-8x-56)
2(x²+7x-8x-56)
2(x(x+7) -8(x+7))
2(x(x+7) -8(x+7))
2(x-8)(x+7)
[answer.2.content]
