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2x^2+21x=-40

2x²+21x+40=0factors of 40=1&40, 2&20, 4&10, 5&85 & 8 are correct factors as 5 + 2*8 = 21(2x+5)(x+8)=0So, x = -8 & -2.5

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What is the ' present subjunctive' tense and when should it be used?

The subjunctive is a form of a verb that is used to show a level of feeling, or doubt; it is commonly used to discuss whether something will happen or not. In French, the...

Answered by Elizabeth H. • French tutor

1390 Views

Describe how the control rods in a nuclear reactor are used to regulate nuclear fission in a nuclear reactor.

A control rod is a device that can be used to absorb neutrons released from nuclear fission. They can be used to slow down or completely stop a reaction by lowering them or raising them into the reactor c...

Answered by Laurie J. • Physics tutor

2405 Views

Translate the following sentence: "C’est mon rêve d’avoir une salle de cinéma et une bibliothèque."

It's my dream to own a cinema and a library.

Answered by Hugues D. • French tutor

1741 Views

If we see the MPC decrease interest rates, what effects should we see in the economy

Decrease in IR --> decrease in savings by households due to high opportunity cost of saving --> increase in consumption (C)--> AD (right shift)--> economic growth & potentially inflation (...

Answered by Nirav M. • Economics tutor

1392 Views