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need the right answer only ( choose a,b,c,d or e)
16 Solve the following quadratic equation using any convenient method. 21 Parfoem the addition or suberaction and write the r
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Selatons 1) C-4x-9)-16z2 191-2-42-9 y 9-72x = 0 72 .apron Ce) s.e, a : Hatbi -4 +14 Comparny the terms we a-4 and b14 HOpton.) Cs-)-(3-) -1-3+7 5-3 opken Co) landard form 2+0) ) (1+) (4-3)) 1+1+3 (il --) 4-31+4i-3) 2 Opten (b) 7 +i 15x3+402+ 90% = 0check Slo)40l0)+8o(o)o + 0 +0 z o S43+ool -64/+0- 310 320 + G40-320 bab sfedboth sides 2412-9 Square on -92021441 - 81= 0 12 9 144 IC FOpbon (e)Cheks 12J9 12r-9 33-9o Gabshed 25 3 21+)+3 = 0 3 LX+1I t3 2I+II 3 0 38 22+38 Opb on (c) he-19 Chech: 3 J2-19)+I+3 3-38+1 +3 V

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