If Two Numbers Are − 3 And − 5 , With Sum − 8 And Product + 15, Then Which Is The Correct Algebraic Expression? - Testpoint

Testpoint Whatsapp group

Testpoint Whatsapp group

If two numbers are − 3 and − 5 , with sum − 8 and product + 15, then which is the correct algebraic expression?

x ^2 −8x+15
x ^2 +8x+15
x ^2 +3x−5
𝑥^2 − 3 𝑥 − 5

Explanation

Sum of two numbers: $-3 + (-5) = -8$
Product: $(-3) times (-5) = +15$

Let’s now write an algebraic expression where the sum is $-8$ and the product is $+15$ .

This is a quadratic expression of the form:

$x^2 + 8x + 15$

Related MCQs

If 4x − 2y = 10 and 2x + y = 5, then what is the value of x?

2.5
3.5
4.5
None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

If (x-2)/3 + (x-4)/10 = x/2, then x = ?

-16
-15
14
None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

Maryam has 3 dollars more than Bilal has, but 5 dollars less than Jameel has. If Maryam has x dollars, how many dollars do Jameel and Bilal have altogether?

2x + 2
2x - 8
2x - 5
None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

Solve: 48 − x = 7x?

x = 5
x = 6
x = 7
None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

If 2x + 4/x = 9, which equation is obtained after multiplying by x?

2x² + 4 = 9x
2x² + 9 = 4x
2x² + 9 = 4x
x² + 4 = 9x

اس سوال کو وضاحت کے ساتھ پڑھیں

Test Point Whatsapp Channel

All Rights Reserved © TestPointpk.com