Evaluate b2−16a+5 when a=12 and b=7

Answer 1

Hello, so the question is asking when a is equal to 12 and b is equal to 7 what is b2- 16a+ 5 equal to

what you will have to do it plug in given a and b to the equation

so the equation will be like

（７）＊２－１６＊（１２）＋５

７＊２　ｉｓ　１４

１６＊１２　ｉｓ　１９２

ａｎｄ　５　ｉｓ　ｊｕｓｔ　５

ｓｏ　ｉｆ　ｗｅ　ｓｕｂｔｒａｃｔ　１９２　ｆｒｏｍ　１４

ｉｔ　ｗｉｌｌ　ｂｅ　（ｎｅｇａｔｉｖｅ）－１７８

ａｎｄ　ｔｈａｎ　ｗｅ　ａｄｄ　５　ｔｏ　－１７８

ｓｏ　ｔｈｅ　ａｎｓｗｅｒ　ｗｉｌｌ　ｂｅ　１７３