Step-by-step explanation:
1) The area of rectangle is ( 30x²y + 20xy ) cm² and its breadth is 10xy cm .Find its length....
= Solution ,
Length ( L ) = ?
breadth ( b ) = 10xy cm
area ( a ) = ( 30x² + 20xy )
Now ,
area ( a ) = l × b
or, ( 30x²y + 20xy ) = L × 10xy cm



2) Subtract the quotient when 20x⁴y² is divided by 5x³y from the product of 2x and 3y.
= Solution,


The product of 3x and 4y = 6xy
= 6x - 4xy

hope it helped !!!!
Answer:
Net money earned = $ 1537
Step-by-step explanation:
Wage for assembling motorcycle = $125
Number of motor cycles assembled last week = 11
Total money earned = $125 x 11 = $1375
Total payment for test ride $18
Number of motor cycles given for test ride last week = 9
Total money earned in test rides = $18 x 9 = $162
Hence, net money earned last week by Roger= $1375+$162 = $1537
Answer:
B is the answer
Step-by-step explanation:
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= -x^2 - (3x - 12x^2 + 7x ) - (2 - 2x - 2)
= -x^2 - 3x + 12x^2 - 7x - 2 + 2x + 2
= 11x^2 - 8x
Answer
11x^2 - 8x