Answer:
1) 5x + 4x²(2x + 7) - 6x² - 9x
= 5x + 8x³ + 28x² - 6x² - 9x
= 8x³ + 22x² - 4x
2) the answer is 2x³ + 17x² + 25x - 50
3) the answer is y = 4x² + 14x + 18
Answer: Its 120 cm
Step-by-step-explenation:
All you have to do is multiply
3x2=6
6x5=30
30x4=120
that's all.............
Y - Intercept is 50
Slope is -25/100
Step-by-step explanation:
Hope this Helps!!
:D
Algebraic Expression
Hope this helps.
