Question

2) Solve: 52 − − 15 = 0 by using factarisation method.​

Answer 1

Answer:

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Answer 2

Answer:

$\huge\bold\green\star\mathtt{\underline{\underline{hey \: here \: is \: your \: answer}}}$

ꜱᴡᴇʀ:

(1) x2 + 5x – 2 = 0

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ x.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 2

ꜱᴏ, ɪᴛ ɪꜱ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.

(2) y2 = 5y – 10

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ y.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 2

ꜱᴏ, ɪᴛ ɪꜱ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.

(3) y2+1y=2

⇒y3+1=2y

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ y.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 3

ꜱᴏ, ɪᴛ ɪꜱ ɴᴏᴛ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.

(4) x+1x=-2

⇒x2+1=-2x

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ x.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 2

ꜱᴏ, ɪᴛ ɪꜱ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.

(5) (ᴍ + 2) (ᴍ – 5) = 0

⇒ᴍ2-3ᴍ-10=0

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ ᴍ.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 2

ꜱᴏ, ɪᴛ ɪꜱ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.

(6) ᴍ3 + 3ᴍ2 – 2 = 3ᴍ3

ᴏɴʟy ᴏɴᴇ ᴠᴀʀɪᴀʙʟᴇ ᴍ.

ᴍᴀxɪᴍᴜᴍ ɪɴᴅᴇx = 3

ꜱᴏ, ɪᴛ ɪꜱ ɴᴏᴛ ᴀ qᴜᴀᴅʀᴀᴛɪᴄ ᴇqᴜᴀᴛɪᴏɴ.