I. If one zero of polynomial is x2+3x+k is 2. The value of k is a. 10
b. -10
c. 5
d. -5
ii. If a and B are zeros of 2x2–5x+3, the value of (a+b)² is
a. 5/2
b. -52
C. 254
d. -25/4
iii. The graphical representation of following pair of linear equation x+2y=-5 and 3x +9y=-15 is
a. parallel line
b. intersecting line
C. coincident line
d. none of these
☞︎︎︎ Dᴏɴ'ᴛ sᴘᴀᴍ
b. -10
c. 5
d. -5
ii. If a and B are zeros of 2x2–5x+3, the value of (a+b)² is
a. 5/2
b. -52
C. 254
d. -25/4
iii. The graphical representation of following pair of linear equation x+2y=-5 and 3x +9y=-15 is
a. parallel line
b. intersecting line
C. coincident line
d. none of these
☞︎︎︎ Dᴏɴ'ᴛ sᴘᴀᴍ
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