6.(b) From the sum of 4+3x and 5-4x+2x^2, subtract the sum of 3x^2–5x and –x^2+2x+5. 6.(b) From the sum of 4+3x and 5-4x+2x^2 subtract the sum of 3x^2–5x and –x^2+2x+5. October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
