Math, asked by aadya74, 1 year ago

factorise: 40+3x-x square

siddhantrao007: the steps performed in the answer of the guy is right upto first 3 lines

siddhantrao007: then it should be

siddhantrao007: (-x-5)(x-8)

vivo1726: yeah sry....

siddhantrao007: then minus taken common

siddhantrao007: so

siddhantrao007: (x+5)(x-8)

siddhantrao007: that's the answer

vivo1726: but it is (x+5)(x -8)

siddhantrao007: minus is taken common bro

Answers

Answered by vivo1726

x² -3x -40
x² -8x +5x -40
x ( x - 8) + 5(x -8)
(x-8) (x+8)
x = -8,x = 8
x can't be negative, so x = 8

hope it help you

aadya74: its wrong

vivo1726: now see my answer is correct

siddhantrao007: whyx can't be negative

vivo1726: thnx for brainliest

Answered by vedthakar004gmailcom

$\huge\mathbb\blue{ANSWER}$

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RE ARRANGE THE EQUATION.

${x}^{2} + 3x + 40$

(SPLIT THE MIDDLE TERM)

${x}^{2} + 8x - 5x + 40$

(TAKE COMMONS FROM BOTH)

$x(x + 8) - 5(x + 8)$

HERE IS YOUR ANSWER

$(x + 8) \: and \: (x - 5)$

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$<marquee direction= "left">❤PLEASE MARK AS BRILLIANT❤</marquee>$

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