Question

solve it 4x^2+21x=6x-14 ?

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Answer 1

Answer:

Answer

4x² + 21x = 6x - 14

4x² + 15x + 14 = 0

4x² + 8x + 7x + 14 = 0

4x(x + 2) + 7(x + 2)= 0

↪(4x + 7)(x + 2) = 0

x = -7/4

x = - 2

Values of x are -2 , -7/4

Answer 2

$\huge\boxed{\red\star\mathfrak\purple{\large{\underline{\underline{\huge{Answer!}}}}}}$

Option A

4x²+21x=6x-14

⟹4x²+21x-6x= -14

⟹4x²+15x+14

By middle term splitting, we get:-

$\boxed{ \bold \red{4 x{}^{2} + 8x + 7x + 14}}$

$\boxed{ \bold \red{4x(x + 2) + 7(x + 2)}}$

$\boxed{ \bold \red{(4x + 7)(x + 2)}}$

$\huge \therefore$

$\boxed{ \mathfrak {zeros \: are - \: }}$

4x+7=0

⟹4x= -7

$\huge\boxed{ \mathfrak \pink{{x = \frac{ - 7}{4} }}}$

and,

x+2= 0

$\huge\boxed {{ \mathfrak \pink{x = - 2}}}$