Advertisements
Advertisements
Question
Simplify:
2 (3x2 – 4x – 8) – (3 – 5x – 2x2)
Sum
Advertisements
Solution
2 (3x2 – 4x – 8) – (3 – 5x – 2x2)
= (6x2 – 8x – 16) – (3 – 5x – 2x2)
= 6x2 – 8x – 16 – 3 + 5x + 2x2
= 6x2 + 2x2 – 8x + 5x – 16 – 3
= 8x2 – 3x – 19
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
Find the value of 2a + 4b + 5c, when a = 5, b = 10 and c = 20
If x = 2, y = 5 and z = 4, find the value of the following:
`("x"^2"y"^2"z"^2)/"xz"`
Evaluate:
(23 – 15) + 4
Evaluate:
(3y + 8y) – 5y
Simplify:
2m − (3m + 2n − 6n)
Fill in the blank:
3x − z + y = 3x − (..............)
Find the value of 3ab + 10bc – 2abc when a = 2, b = 5 and c = 8.
If x = 3, y = 2 and z = 1; find the value of xy + y2z – 4zx
If x = a2 – bc, y = b2 – ca, and z = c2 – ab; find the value of ay – bx + cz
Simplify:
3x – 8 (5x – 10)
