Question

6 X square + 7 x + 15 factorise

Answer 1

IT CAN NOT BE FACTORISE

=>IT DOES NOT HAVE REAL ROOTS

Answer 2

Answer:

X^2+6x+7.................

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$\bf \blue{\large \bf\underline{ \bf\underline{solution}}} </p><p>$

$\bf \green{\underline{according \: to \: the \: quadratic \: formula}}$

The quadratic formula is a formula that provides the solution to a quadratic equation.

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$\bf \blue {\underline {The \: Quadratic \: Formula \to}}$

$\bf \pink{For \: v \: = {ax}^{2} + bx + c}$

The values of x which are the solutions of the equation are given by:

$\begin{lgathered}\bf \: x \: = \frac{-b \pm \sqrt{ {b}^{2} - 4ac } }{2a} \\\\\end{lgathered}$

$</p><p>\bf \blue {\underline {According\to}}$

$\sf \: {ax}^{2} + bx \: + cax </p><p>2</p><p> +bx+c$

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Then,

$\bf \red{a = 1}$

$\bf \blue{b= + 6}$

$\bf \green{c= 7}$

$\begin{lgathered}\bf \blue{putting \: all \: values}\\\end{lgathered}$

$</p><p>\begin{lgathered}\sf \: x \: = \frac{-(+6) \pm \sqrt{ {+6}^{2} - 4 \times 1 \times 7} }{2 \times 1} \\ \\\end{lgathered}$

$\begin{lgathered}\sf \: x \: = \frac{-6 \pm \sqrt{ 36 - 28} }{2 } \\ \\\end{lgathered}$

$\begin{lgathered}\sf \: x \: = \frac{-6 \pm \sqrt{ 8} }{2 } \\\end{lgathered} </p><p>$

$\bf \blue{ On \: doing \: +}$

$\begin{lgathered}\sf \: x \: = \frac{-6 + \sqrt{ 8} }{2 } \\\\\end{lgathered} </p><p>$

$\begin{lgathered}\sf \green{x \: = - 3 + \sqrt{ 8} }\\\\\end{lgathered} </p><p>$

$</p><p>\bf \blue{ On \: doing \: -}$

$</p><p>\begin{lgathered}\sf \: x \: = \frac{ - 6 - \sqrt{ 8} }{2 } \\\\\end{lgathered}$

$\begin{lgathered}\sf \green{x \: = - 3 - \sqrt{ 8} }\\\\\end{lgathered}$

$\huge \boxed{ \fcolorbox{white}{pink}{follow \: me}}$

MARK BRAINLIEST