A. (× + 5) × (5× - 1)= (pake cara) B.(7 - 2×) × (2× - 7)=(pake cara) Mksh yaa
Matematika
Tariswdyn
Pertanyaan
A. (× + 5) × (5× - 1)= (pake cara)
B.(7 - 2×) × (2× - 7)=(pake cara)
Mksh yaa
B.(7 - 2×) × (2× - 7)=(pake cara)
Mksh yaa
1 Jawaban
-
1. Jawaban besyafairdian
a.
(x+5)(5x-1)
= 5x^2 - x + 25x - 5
= 5x^2 + 24x - 5
b.
(7-2x)(2x-7)
= 14x - 49 - 4x^2 + 14x
= -4x^2 + 28x - 49