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Kdokja130go
Answered

Complete the table. Show your solution on the space provided. Equation
x1+ x2 (Sum)
x1 * x2 (Product)
1. x2 – 9x + 8 = 0
2. x2 + 14x + 40 = 0
3. 2x2 + 13x = 7
4. (3x – 1)(x + 2) = 0
5. x2 – X – 20 = 0

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Sagot :

Leena20go

hope it helps ☺

Step-by-step explanation:

1. x²-9x+8=0

x²-x-8x+8=0

x(x-1)-8(x-1)=0

(x-1)(x-8)=0

x-1= 0 x-8=0 final

2. x²+14x+40=0

x(x+10)+4(x+10)=0

(x+10)(x+4)=0

x+10=0 x+4=0

x=-10 x=-4 final

3. 2x²+13x=7

2x²+13x-7=0

2x²+14x-x-7=0

2x(x+7)-(x+7)=0

(x+7)(2x-1)=0

x+7=0 2x-1=0

x= -7 x=1/2 final answer

4. (3x-1)(x+2)=0

3x-1=0 x+2=0

x= -2 x=1/3 final

5. x²-x-20=0

x²+4x-5x-20=0

x(x+4)-5(x+4)=0

(x+4)(x-5)=0

x+4=0 x-5=0

x= -4 x=5 final

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