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Darina [25.2K]
2 years ago
6

Factorise this pleasee x2 + 4x -45

Mathematics
1 answer:
Luden [163]2 years ago
4 0

Answer:

(x - 5)(x + 9)

Step-by-step explanation:

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Write the sum of 18+27 as the product of their gcf and another sum
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Factors of 18: 1; 2; 3; 6; 9; 18

Factors of 27: 1; 3; 9; 27

GCF(18; 27) = 9

<span>18 + 27 = 9 × 2 + 9 × 3 = 9 × (2 + 3) </span>
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Which is the value of g(5) if g(x)=3.4x-8
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I do believe that the answer is 9.<span />
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your dad is designing a new garden for your backyard. he has 21 ft of fencing to go around the garden. he wants the length of th
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Answer:

The garden is 4.5 ft by 6 ft.

Step-by-step explanation:

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2x + 2x + 3 = 21

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Brooklyn is arranging flowers along the front of her home. She has 40.27 square feet of planting space but has used 3.8 square f
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24 flowers

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Two numbers have prime factorizations of 2 2 · 3 · 5 and 2 · 3 2 · 7.
ladessa [460]
I think for the question above, instead of 2 · 3^2 · 7 it is <span>2 · 3^2 · 5.
</span>
Two numbers have prime factorizations of 2^2 • 3 • 5 and 2 • 3^2 • 5 (note 2 squared & 3 squared).

Now, to choose the GCF, you choose, for each base factor in either number, the least exponent-ed one; so the GCF needs a factor 2, a factor 3, and a factor 5. Thus the GCF is 30 (their product). [i.e,2 squared is not a common factor]

<span>To create the LCM, you choose, for each base factor in either number, the greatest exponented one. Thus, LCM needs a factor 2 squared, 3 squared, and 5, giving LCM = 4(9)(5) = 180.</span><span />
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3 years ago
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