Math, asked by ttt6, 1 year ago

xsquare,+8x+20
solvxsquare,+8x+20
solve


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Answers

Answered by vee11
0
Given that, x^2+8x+20<br /><br />a=1, b=8,c=20<br /><br />x=(-b+-√b^2-4ac)/(2a)<br /><br />=(-8+-√(8)^2-4*1*20)/(2*1)<br /><br />=(-8+-√(64-80)/(2)<br /><br />=(-8+-√(-16)/(2)<br /><br />=-8+-(-4)/(2)<br /><br />x=-8+(-4)/2<br /><br />=(-8-4)/2<br /><br />=(-12/2)//<br /><br />x=(-6)//<br/><br/>x=-8-(-4)/2<br /><br />=(-8+4)/2<br /><br />=(-4)/2<br /><br />=(-2)//<br /><br />ie, x=(-6),(-2)<br /><br />factors are, <br /><br />(x+6)(x+2)//
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