Question

Subtract the following:
(1) 16x³ from 15x³ + 3x² - 25
(2) 5m² + 3mn + n² from m² + 6mn - 7n²

Answer 1

at first you try it yourself then ask

Answer 2

Answer:

(1) -x³ + 3x² - 25

(2) -4m² + 3mn - 8n²

Step-by-step explanation:

We have given two questions to subtract

(1) 16x³ from 15x³ + 3x² - 25

(2) 5m² + 3mn + n² from m² + 6mn - 7n²

In the subtraction of polynomials we just subtract like terms. In the subtraction of polynomial, subtraction of co-efficient of like terms is done.

SO,

(1) 16x³ from 15x³ + 3x² - 25

  = (15x³ + 3x² - 25 )-  16x³

  = -x³ + 3x² - 25

(2)  5m² + 3mn + n² from m² + 6mn - 7n²

  = ( m² + 6mn - 7n²)-(5m² + 3mn + n²)

 = -4m² + 3mn -8 n²