Answer:
6.) 2x(x+1)=0
2x²+2x = 0
A=2, B=0, C=-2
7.) (X+4)²=5
X²+8+16-5=0
X²+8x+11=0
A=1, B=8, C=11
8.) (X+3) (x-3) = x (4x+5)
X²-9=4x²+5x
3x²+5x+9=0
A=3, B=5, C=9
9.) (X+5) (x-9) =21
X²-4x-45-21=0
X²-4x-66=0
A=1, B=-4, C=66
Note:I'll try to answer no. 10 of i can but for now that's all i can answer, hope this helps
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Answers & Comments
Answer:
6.) 2x(x+1)=0
2x²+2x = 0
A=2, B=0, C=-2
7.) (X+4)²=5
X²+8+16-5=0
X²+8x+11=0
A=1, B=8, C=11
8.) (X+3) (x-3) = x (4x+5)
X²-9=4x²+5x
3x²+5x+9=0
A=3, B=5, C=9
9.) (X+5) (x-9) =21
X²-4x-45-21=0
X²-4x-66=0
A=1, B=-4, C=66
Note:I'll try to answer no. 10 of i can but for now that's all i can answer, hope this helps