Advertisements
Advertisements
प्रश्न
If P = − 12x2 – 10xy + 5y2, Q = 7x2 + 6xy + 2y2, and R = 5x2 + 2xy + 4y2 ; find P – Q
Advertisements
उत्तर
P = − 12x2 – 10xy + 5y2
Q = 7x2 + 6xy + 2y2
R = 5x2 + 2xy + 4y2
P − Q = (− 12x2 − 10xy + 5y2) − (7x2 + 6xy + 2y2)
= − 12x2 − 10xy + 5y2 − 7x2 − 6xy − 2y2
= − 12x2 − 7x2 − 10xy − 6xy + 5y2 − 2y2
= − 19x2 − 16xy + 3y2
APPEARS IN
संबंधित प्रश्न
Find the value of `("a+b"-"c")/(2"a")`, when a = 5, b = 7 and c = 2
If x = 2, y = 5 and z = 4, find the value of the following:
`"xz"/"yz"`
Simplify:
a − (a − b − c)
Simplify:
− (y − x) − (x + y − `overline(2"x"+"y")`)
Simplify:
x − (y − z) + x + (y − z) + y − (z + x)
Fill in the blank:
3m − 2n + 6 = 6 − (............)
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 3x2 − 5y2
If x = 3, y = 2 and z = 1; find the value of 2x – 3y + 4z + 5
If x = a2 – bc, y = b2 – ca, and z = c2 – ab; find the value of ax + by + cz
