Question

if A = 3x²-7x+8, B= x² +8 x-3 and C=-5x² 3x+2
find the value of B-C-A​

Answer 1

Answer:

$\huge{\boxed{\rm{\red{3x²+18x-13}}}}$

Step-by-step explanation:

Given:-

A = 3x²-7x+8, B= x² +8 x-3 and C=-5x² -3x+2

To find:-

Find the value of B-C-A

Solution:-

Given expressions are

A = 3x²-7x+8,

B= x² +8 x-3

C=-5x² 3x+2

Now B-C-A

=>(x² +8 x-3)-(-5x²- 3x+2)-(3x²-7x+8)

=>x²+8x-3+5x²+3x-2-3x²+7x-8

=>(x²+5x²-3x²)+(8x+3x+7x)+(-3-2-8)

=>3x²+18x-13

Answer:-

B-C-A=3x²+18x-13