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lys-0071 [83]
3 years ago
15

Solve (x^2+3x-2)(x^2-2x+15)​

Mathematics
1 answer:
8_murik_8 [283]3 years ago
3 0

Answer: x^4 + x^3 + 7x^2 + 49x - 30

Step-by-step explanation:

first, we use the distributive property.

x^2 x (x^2 - 2x + 15) + 3x x (x^2 -2x + 15) - 2(x^2 - 2x + 15)

then, we remove the parenthesis.

x^4 - 2x^3 + 15x^2 + 3x^3 - 6x^2 + 45x - 2x^2 + 4x - 30

then, we collect like terms.

x^4 + x^3 + 7x^2 + 49x - 30

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Dotted line

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3 years ago
Lorenzo bought 3 pounds of grapes at $2.50 per pound, a gallon of milk for $4.25, and 2 boxes of cereal that originally cost $4
11Alexandr11 [23.1K]

Answer:

 Total  = $49.05

Step-by-step explanation:

cost of grapes per pound = $ 2.50

she bought 3 pounds of grapes

so cost of  3 pounds of grapes = 3 × 2.50

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gallon of milk = 8.6 pound

so cost of 8.6 pound of milk = 8.6 × 4.25

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$ 1.50  off means =$4 - $ 1.50 = $2.5

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Total = 7.5 + 36.55 + 5

 Total  = $49.05

     

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4 years ago
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