I hope this helps you
x.3x+x.(-1)+5.3x+5.(-1)-(x^2-2.4.x+16)
3x^2-x+15x-5-x^2+8x-16
2x^2+22x-21
$990
550 x .80 = 440
$550 + $440 = $990
Answer:
16
Step-by-step explanation:
forgive me if i am wrong
So h is 3x
b is x
3x plus x equal 972
4x = 972
243 is base
243 times 3 is 729
Yes, substitute a=2.
14 - 4 + 6 - 6 = -2
8 - 10 = -2