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dem82 [27]
3 years ago
11

Simplify (4x+5y)(2x-3y)+3xy

Mathematics
2 answers:
TiliK225 [7]3 years ago
6 0
It would be 8x² - 15y² + xy

(4x + 5y) (2x - 3y) + 3xy
multiplying the terms in brackets
(4x) (2x - 3y) + (5y) (2x - 3y) + 3 xy
multiplying with each terms inside the bracket
(4x)(2x) - (4x) (3y) + (5y) (2x) - (5y) (3y) + 3xy
doing the product each of the pair of terms
8x² - 12xy + 10xy - 15y² + 3xy
taking the sum of terms with coefficient "xy"
8x² - 15y² -2xy + 3xy
8x² - 15y² + xy
emmainna [20.7K]3 years ago
6 0

Answer:

8x²+15xy²+xy

Step-by-step explanation:

hope this helps

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Answer:

Step-by-step explanation:

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8 0
4 years ago
(b+8)(b+2) please show work. I got b^2 + 10b + ?
kolezko [41]

Step 1. Apply FOIL method. bb+b*2+8b+8*2

Step 2. bb+2b+8b+8*2

Step 3. Add similar elements. bb+10b+8*2

Step 4. Apply exponent rule. b^2+10b+8*2

Step 5. Multiply the numbers.  b^2+10b+16

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Answer:

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Oksanka [162]

Answer:

Answer is -55

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3 0
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Raymond bought a used truck for $18,800. If the sales tax in his state is 7 percent, what was the final price for his car?
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$1316

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