(4x+5) (5x+7) = pelajaran smp

(4x+5)(5x+7)
=20x²+28x+25x+35
=20x²+53x+35

(4x+5) (5×+7) = (4x)×(5x) = (4x)×(7)
= (20x2) = (28x)
= (5)×(5x) = (5 × 7)
= (25x) = (35)


Jadi Jawaban Dari (4x+5) (5x+7) adalah......
= 20x2+25×+28×+25
= 20x2+53+25