3 years ago

Please help me to answer these questions!! Thank you in advance.

1 answer:

6 0

1. 5:4:2
5x=87
x=17.4

4(17.4)=69.6
2(17.4)=34.8
add all the lengths together to find the amount of total string
87+69.6+34.8= 191.4

im not sure how to work the second one out.

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sergeinik [125]

The factor of the $18x^{2} -21x-15$ will be 3(3x-5)(2x+1).

<h3>What will be the factor of $18x^{2} -21x-15$ ?</h3>

Given quadratic equation is $18x^{2} -21x-15$

By taking 3 common from whole of the equation it becomes.

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now by factorization equation will be.

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