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3 years ago

Factorise x squared + 3x + 2

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

8 0

Answer:

$(x + 2)(x + 1)$

Step-by-step explanation:

by factorising ;

=》

${x}^{2} + 3x + 2$

=》

${x}^{2} + 2x + x + 2$

=》

$x(x + 2) + 1(x + 2)$

=》

$(x + 2)(x + 1)$

i hope it helped.....

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You want to save $500 for a school trip. You begin by saving a penny on the first day. You save an additional penny each day aft

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Answer:

Step-by-step explanation:

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Where

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d represents the common difference of the terms in the arithmetic sequence.

a represents the first term of the arithmetic sequence.

From the information given,

a = 1 penny = 1/100 = $0.01

d = 0.01

a) For 100 days, the sum of the first 100 terms, S100 would be

S100 = 100/2[2 × 0.01 + (100 - 1)0.01]

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Multiplying through by 2, it becomes

500 × 2 = n[2 × 0.01 + (n - 1)0.01]

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Applying the general formula for quadratic equations,

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n = (- 0.01 + 6.32)/0.02 or

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Factorise x squared + 3x + 2​

Factorise x squared + 3x + 2