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Allushta [10]
3 years ago
8

I don't understand this factorisation a2+ 4a+3​

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

\boxed{\sf (a + 3)(a + 1)}

Step-by-step explanation:

\sf Factor  \: the  \: following:  \\  \sf \implies  {a}^{2}  + 4a + 3 \\  \\  \sf The \:  factors  \: of \:  3 \:  that \:  sum \:  to \:  4  \\ \sf are \:  3  \: and  \:  1. \\ \\  \sf So,  \\   \sf \implies {a}^{2}  + (3 + 1)a + 3 \\  \\  \sf \implies   {a}^{2}  + 3a + a + 3 \\  \\  \sf \implies a(a + 3) + 1(a + 3)  \\  \\ \sf \implies (a + 3)(a + 1)

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antiseptic1488 [7]

Answer: 123

Step-by-step explanation: Stop cheating idiot

5 0
3 years ago
Partial quotient for 654 divided by 3
Vladimir79 [104]

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what is the probability of rolling 15 with a pair of dice? answer in likely, unlikely, equally likely, or impossible
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8 0
3 years ago
Which of these needs the denominator rationalized? -PLEASE HELP
valentinak56 [21]

Answer:

option b

Step-by-step explanation:

\sqrt{ \frac{5}{3} }

\frac{ \sqrt{5} }{ \sqrt{3} }

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4 0
3 years ago
please help me it is URGENT pls the first one is solve and the 2nd one is simplify I will give u lots of points thank you
klasskru [66]
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7

II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
7 0
3 years ago
Read 2 more answers
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