Question

factorise
${x}^{2} + 15x + 56 = 0$
​

Answer 1

x^2 + 15x + 56 = 0

x^2 + 7x + 8x + 56 = 0

x(x + 7) + 8(x + 7) = 0

(x + 7)(x + 8) = 0

(x + 7) = 0 or (x + 8) = 0

x = -7 or x = -8

Answer 2

$\huge {\underline {\underline {\mathbb {\green {Answer:-}}}}}$

$x^2+15x+56=0$

$x^2+7x+8x+56=0$

$x(x+7)+8(x+7)=0$

$(x+7)(x+8)=0$

$if x+7 =0</p><p>\\x= -7</p><p>\\</p><p>\\if x+8 =0</p><p></p><p>\\x = -8$

$<marquee = scrollamount=1000>hope it helps ♥ </marquee>$