Advertisements
Advertisements
प्रश्न
If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: m + 2n
योग
उत्तर
m = 9x2 - 4xy + 5y2
n = - 3x2 + 2xy - y2
∴ m + 2n
= (9x2 - 4xy + 5y2) + 2 (- 3x2 + 2xy - y2)
= 9x2 - 4xy + 5y2 - 6x2 + 4xy - 2y2
= 9x2 - 6x2 - 4xy + 4xy + 5y2 - 2y2
= 3x2 + 3y2
shaalaa.com
Performs Operations (Addition and Subtraction) on Algebraic Expressions with Integral Coefficients Only.
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Subtract: 4p + p2 from 3p2 - 8p
Subtract: 4x2 - 5x2y + y2 from - 3y2 + 5xy2 - 7x2 - 9x2y
By how much is 3x3 – 2x2y + xy2 -y3 less than 4x3 – 3x2y – 7xy2 +2y3
Simplify: 3x + 5(2x + 6) - 7x
Simplify: 2x - y + 5 - (x - y)
Copy and complete the following multi-plication:
a + b
× a + b
Copy and complete the following multi-plication:
2a - b + 3c
× 2a - 4b
Multiply: 2mnpq, 4mnpq and 5 mnpq
Simplify: `"x"/2+"x"/4`
Simplify: `(2"p" + "p"/7) div ("9p"/10 + "4p")`
