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ollegr [7]
3 years ago
6

Expand and simplify this can you help  (2x²−3x+4) ( x²+5x−7) 

Mathematics
1 answer:
Burka [1]3 years ago
3 0
(2x^2-3x+4) ( x^2+5x-7)= \\ \\=2x^2*x^2+2x^2*5x-2x^2*7-3x*x^2-3x*5x+3x*7+4*x^2+4*5x-4*7=\\ \\=2x^4+10x^3-14x^2 -3 x^3-15x^2+21x +4 x^2+20x-28=\\ \\=2x^4+7x^3-25x^2 +41x -28


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14+6×(9-6)<br><br>please answer ​
Andreas93 [3]

Answer:

32

Step-by-step explanation:

14+6(9-6)

[9-6=3]

14+6x3

[6x3=18]

14+18

32

---

hope it helps

5 0
2 years ago
Read 2 more answers
‼️‼️‼️‼️‼️
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Step-by-step explanation:

6 0
2 years ago
GUYS HELP ME PLS. Tina is standing at the bottom of a hill. Matt is standing on the hill so that when Tina's line of sight is
Pie

Answer:

71°

Step-by-step explanation:

The angle of elevation of the hill can be obtiaed using trigonometry :

Given

the opposite length = 14.5 feets

Adjacent = 5 feets

The angle of elevation vabnbe obtained using :

Tan θ = opposite / Adjacent

Where θ = angle of elevation

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3 0
3 years ago
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3 years ago
The length of the rectangle is three more than the width find the length of the rectangle if the perimeter is 98 inches
Aleks [24]

Answer:

length is 26 and width is 23

Step-by-step explanation:

let width be x

then length is 3+x since it is 3 more than the width

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98=6+4x

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width is 23 and

breadth is 26

5 0
2 years ago
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