Answer:
= 10x² + 9x³
Step-by-step explanation:
I'm assuming you mean question 19
3x² + 5x³ + 7x² + 4x³ (rearrange to group like terms)
=3x² + 7x² + 5x³ + 4x³ (factor out common powers)
= (3+7)x² + (5+4)x³
= 10x² + 9x³
the answer is 72
let me know if you need an explanation
Answer:
Gcf or Lcf, you didint state on question
<h3>
Answer: 6</h3>
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Work Shown:
1 liter = 1000 mL
3 liters = 3000 mL
I multiplied both sides by 3.
Divide that result over 500 to get 3000/500 = 6
So she'll need to buy 6 cartons.
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You could also solve like this:
(1 carton)/(500 mL) = (x cartons)/(3000 mL)
1/500 = x/3000
1*3000 = 500*x ... cross multiply
3000 = 500x
500x = 3000
x = 3000/500 .... dividing both sides by 500
x = 6
Answer: 4^2 + 9
Step-by-step explanation:
Simplify
4x^2 - 2x + 1 + 2x + 8
Collect like terms
4^2 + (-2x+2x) + (1+8)
Simplify
4x^2 + 9