1. (x - 9) + (x + 5) You split the x^2 into two xs The one with an x (-4x) is what the two numbers should equal -9 + 5 = 4 The one without an x (-45) is what the two numbers product should be -9 times 5 = -45 *so remember the x is the sum of the two *no x is the product of the two Theres no quick trick to find the answer u just have to plug it in *start with all the numbers that multiply for the no x (-45) -3 and 15 or 3 and -15 is obviously not it as the sum does not equal -4 Those sums equal 12 or -12 I’ll do one more and ur on ur own comrade (ok and ill do number 4) 3. (x - 8) + (x - 9) ok this time both the answers have a negative *if it has only one negative in the problem there are going to be TWO negatives in the answer -8 and -9 sum is -17 -8 and -9 sum is 72 If there was only one negative in the answer it would make the 72 negative and there is no -72 in the problem So this one is (x - 8) + (x - 9) (u dont have to have it like this u can put the (x - 9) in the front doesn’t matter which way it’s just the signs (- & +) that matter OK now 4. 4. This one is very easy as all u need to do is find the two numbers for the product (X - 6) (X + 6) (Again it doesn’t matter which () is in front just the SIGNS INSIDE THE PARENTHESES ( + & - ) GL
For this question you can say: 1/2 = 8/16 so now you can add easily: 9/16 + 8/16 = 17/16 and that's the simplest fraction but you can also say: 17/16 = 1.0625 :))) i hope this is helpful have a nice day
