Question

Please step by step explanation
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Answer 1

p2-10p+24=0

p2-6p-4p+24=0

p(p-6)+4(p-6)=0

p=6 or p=4

a2-9a-90=0

a2-15a+6a-90=0

a(a-15)+6(a-15)=0

a=15 or a=6

x2-x-42=0

x2-7x+6x-42=0

x(x-7)+6(x-7)=0

(x-7)(x+6)=0

x=7 or x=-6

x2-5x+6=0

x2-3x-2x+6=0

x(x-3)-2(x-3)=0

x=3 or x=2

x2-10x+16=0

x2-8x-2x+16=0

x(x-8)-2(x-8)=0

x=8 or x=2

a2+20a-69=0

a2+23a-3a-69=0

a(a+23)-3(a+23)=0

a=-23 or a=3

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