Question

multiply
1. 3x² ( 8ax² + 7bx )
2. ( 8a+b ) ( 7a+8b - 3c )
3. ( 7a + b + c ) ( 7a+b-c )
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Answer 1

Answer:

Mr. Shankar owns a business of medical devices. At present, he sells in North India only but has plans to expand. To launch his products in South India. He ha applied to the bank for enhancement of the Overdraft limit for 50 lakh to 1 Crore. Bank Manager suggested him to take "Term Loan" of 30 lakh. Why do you think Mr. Shankar has applied for enhancement of overdraft limit? Do you think he should consider Term loan instead of Overdraft limit? *

Answer 2

Answer:

Solve equation [2] for the variable c

[2] c = -4a - 6b - 4

// Plug this in for variable c in equation [1]

[1] 8a + 8b - (-4a-6b-4) = 5

[1] 12a + 14b = 1

// Plug this in for variable c in equation [3]

[3] 7a - 8b - 4•(-4a-6b-4) = 15

[3] 23a + 16b = -1

// Solve equation [3] for the variable b

[3] 16b = -23a - 1

[3] b = -23a/16 - 1/16

// Plug this in for variable b in equation [1]

[1] 12a + 14•(-23a/16-1/16) = 1

[1] -65a/8 = 15/8

[1] -65a = 15

// Solve equation [1] for the variable a

[1] 65a = - 15

[1] a = - 3/13

// By now we know this much :

a = -3/13

b = -23a/16-1/16

c = -4a-6b-4

// Use the a value to solve for b

b = -(23/16)(-3/13)-1/16 = 7/26

// Use the a and b values to solve for c

c = -4(-3/13)-6(7/26)-4 = -61/13

Solution :

{a,b,c} = {-3/13,7/26,-61/13}