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3 years ago

X(x+7)=4x+10 then needs to get the normal form of the equation x= ?, x=?

Mathematics

1 answer:

Vanyuwa [196]3 years ago

8 0

Answer:

x = - 5, x = 2

Step-by-step explanation:

Given

x(x + 7) = 4x + 10 ← distribute left side

x² + 7x = 4x + 10 ( subtract 4x + 10 from both sides )

x² + 3x - 10 = 0 ← in standard form

(x + 5)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 2 = 0 ⇒ x = 2

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3 years ago

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3 years ago

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3 years ago

a group 5 friends want to buy a flat screen tv for $ 210. the tax comes to $15. write and solve a multiplication equation to fin

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Let x be the amount each friend pays .

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3 years ago

Read 2 more answers