perform the following multiplication:(x+4)(x+5)=?

Question

a.x2+9x+20
b.x2+20x+9
c.9x2+9x+20
d.9x2+9x+9

Answer 1

A.

Answer 2

hi, in case you attempt to simplify the equation you will stick to the stick to steps: 4x/5 -2x/3 first then upload the sum of that to x/2. So a million) come across a simple denominator, to that end it relatively is 15. You write a clean fraction with a denominator of 15. Then divide 15 into the two denominators 5 and 3, then multiply those extensive style that are 3 and 5 into the numerators w/x so it could be 3 * 4x = 12x and 5 * 2x this is 10x. Then subtract the two numerators to get 2x/15 (the denominator remains consistent). Now take the 2d element, x/2, and upload it to 2x/15. You try this by technique of looking yet another simple denominator which could be 30 then divide 30 into the two 15 and a pair of this is two and 15. distinctive the two those numbers into the numerators 2x and x and you gets 4x + 15x / 30. So your answer is 19x/30.

Answer 3

Alright. Use the FOIL method. First, x times x, or x^2. Outer, x times 5, or 5x. Inner, 4 times x, or 4x. Last, 4 times 5, or 20. So, your equation reads x^2+5x+4x+20, which can be reduced to x^2+9x+20, or A.

Answer 4

USE THE F +O + I + L. Method

Firsts X times X = X2

Outers: x times 5 = 5X
Inners: X times 4 = 4X

Lasts: 5 times 4 = 20

Add it all up... = x2 + 9x + 20

FOIL IT EVERY TIME

Answer 5

A. x2+9x+20
Use the FOIL system
First
Outsides
Insides
Last

Answer 6

x^2 + 5x + 4x + 20
x^2 + 9x + 20

Answer 7

FOIL: First Outside Inside Last

Answer 8

x2+9x+20

Answer 9

a.x2+9x+20

Answer 10

x2 +9x +20.

Answer 11

A is your correct answer