Find the compound interest when the sum of rs 10000 is invested for 1

1.	Find the compound interest when the sum of rs 10000 is invested for 1 year and 3 months at the rate of 8½% compounded annually.pls tell step by step
Answer» Step-by-step explanation: The first TERM is, 4a2 its coefficient is 4 . The middle term is, -13a its coefficient is -13 . The last term, "the CONSTANT", is +10 Step-1 : Multiply the coefficient of the first term by the constant 4 • 10 = 40 Step-2 : Find two factors of 40 whose sum equals the coefficient of the middle term, which is -13 . -40 + -1 = -41 -20 + -2 = -22 -10 + -4 = -14 -8 + -5 = -13 That's it Step-3 : Rewrite the polynomial SPLITTING the middle term using the two factors found in step 2 above, -8 and -5 4a2 - 8a - 5A - 10 Step-4 : Add up the first 2 terms, pulling out like factors : 4a • (a-2) Add up the last 2 terms, pulling out common factors : 5 • (a-2) Step-5 : Add up the four terms of step 4 : (4a-5) • (a-2) Which is the desired factorization

Find the compound interest when the sum of rs 10000 is invested for 1 year and 3 months at the rate of 8½% compounded annually.pls tell step by step

Answer»

Step-by-step explanation:

The first TERM is, 4a2 its coefficient is 4 .

The middle term is, -13a its coefficient is -13 .

The last term, "the CONSTANT", is +10

Step-1 : Multiply the coefficient of the first term by the constant 4 • 10 = 40

Step-2 : Find two factors of 40 whose sum equals the coefficient of the middle term, which is -13 .

-40 + -1 = -41

-20 + -2 = -22

-10 + -4 = -14

-8 + -5 = -13 That's it

Step-3 : Rewrite the polynomial SPLITTING the middle term using the two factors found in step 2 above, -8 and -5

4a2 - 8a - 5A - 10

Step-4 : Add up the first 2 terms, pulling out like factors :

4a • (a-2)

Add up the last 2 terms, pulling out common factors :

5 • (a-2)

Step-5 : Add up the four terms of step 4 :

(4a-5) • (a-2)

Which is the desired factorization