What is the coefficiant of (x^4)( y^3) iterm in the expansion of (x-2y)^7

The coefficient of is -280

Step-by-step explanation:

Solving the Binomial expansion using the Pascal's triangle, it would be observed that an expansion to the power of 7 can be solved using;

1  7  21  35  35  21  7  1

Thus;

= 1. + 7.(-2y) + 21. + 35. + 35. + 21. + 7.x +

        = -14y +84 -280 + 560 - 672 + + 448x - 128

Therefore, the coefficient of is -280

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1