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3 years ago

What is 3x² + 3x - 36 and x² - 3x - 28 in factored form?

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

7 0

Answer:

(x+4)(x-7)

Step-by-step explanation:

satela [25.4K]3 years ago

3 0

Answer:

3x² + 3x - 36=

(3x+12)(x-3)

x² - 3x - 28=

(x+4)(x-7)

Step-by-step explanation:

For both equations use the method called the "Cross Method". It is useful for these type of factorisation questions called "Trinomials".

For more info on the cross method.

Here it is:

https://www.mathsteacher.com.au/year10/ch10_factorisation/05_cross_mult_method/cross.htm

Hope you enjoyed :D

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Anyone help me solve for y.

riadik2000 [5.3K]

Answer:

y = - 4

Step-by-step explanation:

Given

y = 2x + ( - 2) , that is

y = 2x - 2 ← substitute x = - 1

y = 2(- 1) - 2 = - 2 - 2 = - 4

This is confirmed by the point (- 1, - 4 ) on the graph

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3 years ago

Read 2 more answers

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vlada-n [284]

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3 years ago

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kolezko [41]

Answer:

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Step-by-step explanation:

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3 years ago

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kifflom [539]

Answer:

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kamsahamnida have a great day