Question

factorise in Quadratic equations(х + 3) (x — 3) = 27​

Answer 1

➢ᴍᴀᴋᴇ ᴍᴇ ʙʀᴀɪɴɪsᴛ ᴀɴs ɪғ ʏᴏᴜ ɢᴇᴛ ʜᴇʟᴘ᭄

Let f(x) = x³ + 27

0 = x³ + 27

x³= -27

x = -3

This means that x = -3 is the only zero of the graph of f(x). Since we know (x+3) is one factor of f(x), to find the 2nd factor,

x3+27x+3

We get the second factor to be x2−3x+9.

Therefore, f(x)=(x+3)(x2−3x+9)

Answer 2

Answer:

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