7. If A = 3x2 - 4x + 1 , B = 5x2 + 3x - 8 and C = 4x2 - 7x + 3, then find:
(a) (A+B) - C
(b) B+C - A
(c) A+B+C
Answers
Answered by
1
Answer:
a)4x2+6x-10
b)6x2+8x-6
c)12x2-8x-6
Step-by-step explanation:
A=3x2-4x+1
B=5x2+3x-8
C=4x2-7x+3
(A+B)-C=(3x2-4x+1+5x2+3x-8)-(4x2-7x+3)
=4x2+6x-10
(B+C)-A=(5X2+3x-8+4x2-7x+3)-(3x2-4x+1)
=6x2+8x-6
A+B+C=3x2-4x+1+5x2+3x-8+4x2-7x+3
=12x2-8x-4
Similar questions