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2 years ago

What is equivalent tox2+ 14x = -13

Mathematics

1 answer:

postnew [5]2 years ago

8 0

Answer:

X= 1 AND 13

Step-by-step explanation:

x2+14x = -13

by completing the square method

you add the square of half the coefficient of b to both sides

which is (14/2)^2

x^2+14x+(7^2) = -13 +(7^2)

x^2 + 7^2 = -13 + 49

x^2 + 7^2 = 36

(x + 7)^2 = 36

find the square root of both sides

(x+7) = + or - 6

x=7-6 ; 1

x= 7+6 ; 13

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Solnce55 [7]

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2 years ago

Solve the equation 3p (3p - 8) - 8 = 9p ( p - 3 + 4

pentagon [3]

Answer:

$p= \frac{-8}{33}$

Explanation:

Given:

$3p (3p - 8) - 8 = 9p ( p - 3 + 4)$

To Find:

Value of p=?

Solution:

Before solving this equation, we will use the method of BODMAS which states that we first solve the Bracket then Off then Division then Multiplier then addition and at last subtraction.

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Gruoping the like terms we get,

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3 years ago

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The sides of a triangle are 10, 14, 18 what tie of triangle is it

leva [86]

Let "a", "b" and "с" be sides of the triangle ("с" is the longest side). The triangle will be:
right if a² + b² = c²
аcute if a² + b² > c²
obtuse if a² + b² < c²

We have a=10, b=14 and c=18

a² + b² = 10² + 14² = 100 + 196 = 296
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296 < 324 ⇒ obtuse triangle.

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3 years ago

What is equivalent tox2+ 14x = -13​

What is equivalent tox2+ 14x = -13