Saved Bookmarks
| 1. |
X×x -5x-50 factorise |
|
Answer» n:To Factorise x² - 5x - 50Answer:(x-10)(x+5)Step-by-step explanation: x² - 5x - 50We have to find two NUMBERS that when MULTIPLIED give -50 and when added GIVES -5 (From the term 5x).We can see that the product is negative.∴ 1 Number is negative and 1 number is positive Also, the sum is negative, so we know that the GREATER number is negative. We see that -10 + 5 = -5 AND -10 × 5 = -50∴ x² - 5x - 50 can be written as x² - 10x +5x - 50 = (x² - 10x) + (5x - 50) {Taking x and 5 common from the first and last two terms} = x(x - 10) + 5(x - 10){Taking (x - 10) common} = (x - 10)(x + 5)Hope that helps you...☺☻Please mark as Brainliest if you liked the answer.☻ |
|