Answer:
-30/7 = x
Step-by-step explanation:
im guessing u mean (3x+5)/(2x+7) = 5
3x+5 = 5(2x+7)
3x+5=10x+35
-7x=30
x= -30/7
Easy multiply twenty times four you'll get your answer
(w² - 4w - 3) (w² + 4w - 3)
w² + 4w³ - 3w² -4w³ - 16w² + 12w-3w² - 12w + 9