Question

X square minus 3X -4 equal to 0

Answer 1

★ Correct Question

→ $\large x^{2}-3x-4 =0$

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★ Solution

$\longrightarrow x^{2}-3x-4=0\\ \longrightarrow x^{2}-(4+1)x-4 =0 \\ \longrightarrow x^{2}-4x-1x-4 =0 \\ \longrightarrow x(x-4)-1(x-4)=0 \\ \longrightarrow (x-4),(x-1) =0 \\ \longrightarrow x-4=0,x-1=0 \\ \longrightarrow x=4, x=1$

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Extra Explanation.

• Splitting the middle term.
• factories the polynomial.
• put value of x =0.